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The Best Alien Movies on Prime Video

Finding a good Alien movie to watch can be hard, so we've ranked the best ones and included where to watch them. Check out our list of the best Alien movies of all time streaming on Prime Video.

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1. The Avengers

IMDB LogoIMDB Star
8.0/10
Rotten Tomatoes Logo92%
Reelgood Logo
95/100
Released: 2012Rated: PG-13
Action & Adventure, Science-Fiction

What it's about: When an unexpected enemy emerges and threatens global safety and security, Nick Fury, director of the international peacekeeping agency known as S.H.I.E.L.D., finds himself in need of a team to pull the world back from the brink of disaster. Spanning the globe, a daring recruitment effort begins!

Where to Watch: Available to stream on a popular subscription service (Prime Video & Disney+), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 7 services (iTunes, Google Play & 5 others).

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2. A Trip to the Moon

IMDB LogoIMDB Star
8.2/10
Rotten Tomatoes Logo100%
Reelgood Logo
85/100
Released: 1902Rated: G
Action & Adventure, Fantasy

What it's about: A group of men travel to the moon by being shot in a capsule from a giant cannon. They are captured by moon-men, escape, and return to the earth. The film was the first film with a self-contained plot and was the beginning of the science fiction genre.

Where to Watch: Available to stream on a popular subscription service (Prime Video & Kanopy) & rent or buy from $0.99 on 2 services (Prime Video & PlayStation Store).

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3. Invasion of the Body Snatchers

IMDB LogoIMDB Star
7.7/10
Rotten Tomatoes Logo98%
Reelgood Logo
83/100
Released: 1956
Horror, Science-Fiction

What it's about: A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.

Where to Watch: Available to watch free online (Sony Crackle & PopcornFlix), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

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4. A.I. Artificial Intelligence

IMDB LogoIMDB Star
7.2/10
Rotten Tomatoes Logo74%
Reelgood Logo
82/100
Released: 2001Rated: PG-13
Action & Adventure, Drama

What it's about: David, a robotic boy—the first of his kind programmed to love—is adopted as a test case by a Cybertronics employee and his wife. Though he gradually becomes their child, a series of unexpected circumstances make this life impossible for David. Without final acceptance by humans or machines, David embarks on a journey to discover where he truly belongs, uncovering a world in which the line between robot and machine is both vast and profoundly thin.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

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5. Transformers: Dark of the Moon

IMDB LogoIMDB Star
6.2/10
Rotten Tomatoes Logo35%
Reelgood Logo
73/100
Released: 2011Rated: PG-13
Action & Adventure, Science-Fiction

What it's about: Sam Witwicky takes his first tenuous steps into adulthood while remaining a reluctant human ally of Autobot-leader Optimus Prime. The film centers around the space race between the USSR and the USA, suggesting there was a hidden Transformers role in it all that remains one of the planet's most dangerous secrets.

Where to Watch: Available to stream on a popular subscription service (Prime Video & Hulu), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

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6. Explorers

IMDB LogoIMDB Star
6.6/10
Rotten Tomatoes Logo77%
Reelgood Logo
72/100
Released: 1985Rated: PG
Children, Science-Fiction

What it's about: The visionary dreams of three curious and adventuresome young boys become an exciting reality in Explorers, the action-fantasy from director Joe Dante, who combines keen humor, warmth and fantasy with unexpected twists. In their makeshift laboratory, the boys use an amazing discovery and their ingenuity to build their own spaceship and launch themselves on a fantastic interplanetary journey.

Where to Watch: Available to watch free online (Sony Crackle & PopcornFlix), stream on a popular subscription service (Prime Video & Kanopy) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

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7. Bad Taste

IMDB LogoIMDB Star
6.6/10
Rotten Tomatoes Logo68%
Reelgood Logo
72/100
Released: 1987Rated: R
Comedy, Cult

What it's about: A team from the intergalactic fast food chain Crumb's Crunchy Delights descends on Earth, planning to make human flesh the newest taste sensation. After they wipe out the New Zealand town Kaihoro, the country’s Astro-Investigation and Defense Service (AIaDS) is called in to deal with the problem. Things are complicated due to Giles, an aid worker who comes to Kaihoro the same day to collect change from the residents. He is captured by the aliens, and AIaDS stages a rescue mission that quickly becomes an all-out assault on the aliens’ headquarters.

Where to Watch: Available to watch free online (PopcornFlix & Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $0.99 on 1 service (Prime Video).

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8. Star Trek: Insurrection

IMDB LogoIMDB Star
6.4/10
Rotten Tomatoes Logo55%
Reelgood Logo
71/100
Released: 1998Rated: PG
Science-Fiction, Action & Adventure

What it's about: When an alien race and factions within Starfleet attempt to take over a planet that has "regenerative" properties, it falls upon Captain Picard and the crew of the Enterprise to defend the planet's people as well as the very ideals upon which the Federation itself was founded.

Where to Watch: Available to stream on a popular subscription service (Prime Video & Hulu), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 5 services (Google Play, Prime Video & 3 others).

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9. Liquid Sky

IMDB LogoIMDB Star
6.1/10
Rotten Tomatoes Logo95%
Reelgood Logo
69/100
Released: 1982Rated: R
Science-Fiction, LGBTQ

What it's about: Invisible aliens in a tiny flying saucer come to Earth looking for heroin. They land on top of a New York apartment inhabited by a drug dealer and her female, androgynous, bisexual nymphomaniac lover, a fashion model. The aliens soon find the human pheromones created in the brain during orgasm preferable to heroin, and the model's casual sex partners begin to disappear. This increasingly bizarre scenario is observed by a lonely woman in the building across the street, a German scientist who is following the aliens, and an equally androgynous, drug-addicted male model.

Where to Watch: Available to stream on a popular subscription service (Prime Video & Shudder) & rent or buy from $0.99 on 1 service (Prime Video).

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10. Evolution

IMDB LogoIMDB Star
6.1/10
Rotten Tomatoes Logo43%
Reelgood Logo
69/100
Released: 2001Rated: PG-13
Comedy, Science-Fiction

What it's about: A comedy that follows the chaos that ensues when a meteor hits the Earth carrying alien life forms that give new meaning to the term "survival of the fittest." David Duchovny, Orlando Jones, Seann William Scott, and Julianne Moore are the only people standing between the aliens and world domination... which could be bad news for the Earth.

Where to Watch: Available to stream on a popular subscription service (Netflix & Prime Video), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

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11. Knowing

IMDB LogoIMDB Star
6.2/10
Rotten Tomatoes Logo33%
Reelgood Logo
68/100
Released: 2009Rated: PG-13
Action & Adventure, Drama

What it's about: A teacher opens a time capsule that has been dug up at his son's elementary school; in it are some chilling predictions -- some that have already occurred and others that are about to -- that lead him to believe his family plays a role in the events that are about to unfold.

Where to Watch: Available to stream on a popular subscription service (Prime Video & Hulu), stream on a popular TV everywhere service (Epix) & rent or buy from $3.99 on 6 services (iTunes, Google Play & 4 others).

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12. Airplane II: The Sequel

IMDB LogoIMDB Star
6.2/10
Rotten Tomatoes Logo42%
Reelgood Logo
65/100
Released: 1982Rated: PG
Comedy, Science-Fiction

What it's about: A faulty computer causes a passenger space shuttle to head straight for the sun, and man-with-a-past, Ted Striker must save the day and get the shuttle back on track – again – all the while trying to patch up his relationship with Elaine.

Where to Watch: Available to watch free online (Sony Crackle & PopcornFlix), stream on a popular subscription service (Prime Video), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

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13. Species

IMDB LogoIMDB Star
5.8/10
Rotten Tomatoes Logo43%
Reelgood Logo
64/100
Released: 1995Rated: R
Horror, Science-Fiction

What it's about: In 1993, the Search for Extra Terrestrial Intelligence Project receives a transmission detailing an alien DNA structure, along with instructions on how to splice it with human DNA. The result is Sil, a sensual but deadly creature who can change from a beautiful woman to an armour-plated killing machine in the blink of an eye.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

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14. Earth Girls Are Easy

IMDB LogoIMDB Star
5.3/10
Rotten Tomatoes Logo67%
Reelgood Logo
63/100
Released: 1988Rated: PG
Comedy, Musical

What it's about: In this musical comedy, Valerie is dealing with her philandering fiancé, Ted, when she finds that a trio of aliens have crashed their spaceship into her swimming pool. Once the furry beings are shaved at her girlfriend's salon, the women discover three handsome men underneath. After absorbing the native culture via television, the spacemen are ready to hit the dating scene in 1980s Los Angeles.

Where to Watch: Available to stream on a popular subscription service (Prime Video, Hulu & Tribeca Short List), stream on a popular TV everywhere service (Epix) & rent or buy from $3.99 on 6 services (iTunes, Google Play & 4 others).

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15. The Day of the Triffids

IMDB LogoIMDB Star
6.2/10
Rotten Tomatoes Logo76%
Reelgood Logo
63/100
Released: 1962
Horror, Science-Fiction

What it's about: A shower of meteorites produces a rare night time spectacle that blinds anyone that looks at it. As it was such a beautiful sight, most people were watching, and as a consequence, 99% of the World's population go completely blind. In the original novel, this chaos results in the escape of Triffids: farmed plants harvested for their oils, which are capable of moving themselves around and are carnivorous. In this film version, however, the Triffids are not indigenous plants. Instead they are space aliens whose spores have arrived in this and an earlier meteor shower. Derided by the original novel's author, John Wyndham, for straying so far away from the source material.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $0.99 on 1 service (Prime Video).

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16. The Box

IMDB LogoIMDB Star
5.6/10
Rotten Tomatoes Logo44%
Reelgood Logo
60/100
Released: 2009Rated: PG-13
Drama, Mystery

What it's about: Norma and Arthur Lewis, a suburban couple with a young child, receive a simple wooden box as a gift, which bears fatal and irrevocable consequences. A mysterious stranger delivers the message that the box promises to bestow upon its owner $1 million with the press of a button. However pressing this button will simultaneously cause the death of another human being somewhere in the world; someone they don't know. With just 24 hours to have the box in their possession, Norma and Arthur find themselves in the cross-hairs of a startling moral dilemma and must face the true nature of their humanity.

Where to Watch: Available to stream on a popular subscription service (Prime Video) & rent or buy from $0.99 on 5 services (iTunes, Google Play & 3 others).

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17. Imitation Girl

IMDB LogoIMDB Star
4.8/10
Rotten Tomatoes Logo100%
Reelgood Logo
59/100
Released: 2017
Drama, Science-Fiction

What it's about: A mysterious young woman materializes in the middle of the southwestern desert, where each step teaches her about her new world and her new body. As she assumes her new life, she discovers she has a twin with whom she shares more than just an outward appearance.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 4 services (iTunes, Google Play & 2 others).

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18. Plan 9 from Outer Space

IMDB LogoIMDB Star
4.0/10
Rotten Tomatoes Logo67%
Reelgood Logo
58/100
Released: 1959
Horror, Cult

What it's about: In California, an old man grieves the loss of his wife and on the next day he also dies. However, the space soldier Eros and her mate Tanna use an electric device to resurrect them both and the strong Inspector Clay that was murdered by the couple. Their intention is not to conquest Earth but to stop mankind from developing the powerful bomb “Solobonite” that would threaten the universe. When the population of Hollywood and Washington DC sees flying saucers on the sky, a colonel, a police lieutenant, a commercial pilot, his wife and a policeman try to stop the aliens.

Where to Watch: Available to watch free online (PopcornFlix, SnagFilms & Tubi), stream on a popular subscription service (Prime Video, Fandor, FilmBox & 2 others) & rent or buy from $2.00 on 5 services (iTunes, Google Play & 3 others).

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19. Soldier

IMDB LogoIMDB Star
6.0/10
Rotten Tomatoes Logo12%
Reelgood Logo
58/100
Released: 1998Rated: R
Action & Adventure, Drama

What it's about: Sergeant Todd is a veteran soldier for an elite group of the armed forces. After being defeated by a new breed of genetically engineered soldiers, he is dumped on a waste planet and left for dead. He soon interacts with a group of crash survivors who lead out a peaceful existence. The peace is broken as the new soldiers land on the planet to eliminate the colony, which Sergeant Todd must defend.

Where to Watch: Available to stream on a popular subscription service (HBO & Prime Video), stream on a popular TV everywhere service (HBO & Cinemax) & rent or buy from $2.99 on 5 services (iTunes, Google Play & 3 others).

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20. How to Talk to Girls at Parties

IMDB LogoIMDB Star
5.7/10
Rotten Tomatoes Logo47%
Reelgood Logo
58/100
Released: 2017Rated: R
Comedy, Romance

What it's about: Croydon, 1977. A trio of punk teenagers goes to a party to meet girls, but they find that girls there are very different from what they expected.

Where to Watch: Available to stream on a popular subscription service (Prime Video & Kanopy) & rent or buy from $0.99 on 7 services (iTunes, Google Play & 5 others).

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21. Absolutely Anything

IMDB LogoIMDB Star
6.0/10
Rotten Tomatoes Logo18%
Reelgood Logo
58/100
Released: 2015Rated: R
Comedy, Science-Fiction

What it's about: Eccentric aliens give a man the power to do anything he wants to determine if Earth is worth saving.

Where to Watch: Available to watch free online (Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 7 services (iTunes, Google Play & 5 others).

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22. Battle Beyond the Stars

IMDB LogoIMDB Star
5.6/10
Rotten Tomatoes Logo45%
Reelgood Logo
56/100
Released: 1980Rated: PG
Action & Adventure, Comedy

What it's about: A young farmer assembles a band of diverse mercenaries to defend his peaceful planet from an evil tyrant.

Where to Watch: Available to watch free online (Tubi & Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 4 services (iTunes, Google Play & 2 others).

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23. War Of The Worlds The True Story

IMDB LogoIMDB Star
8.1/10
Rotten Tomatoes LogoN/A
Reelgood Logo
52/100
Released: 2012
Action & Adventure, Science-Fiction

What it's about: What if the Earth/Mars battle from H.G. Wells' classic novel The War of the Worlds wasn't fiction but actually fact? That's the story of WAR OF THE WORLDS THE TRUE STORY, 85th Academy Awards Oscar contender. Like the famous 1938 Orson Welles radio broadcast that caused Americans to believe an actual invasion was in progress, the movie assumes an Earth/Mars War in 1900 actually occurred and is presented as the first hand memoir of journalist Bertie Wells, the last living survivor as he struggles to find his wife amidst the destruction of humankind at the hands of terrifying alien invaders. Now on DVD and ON DEMAND.

Where to Watch: Available to stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 1 service (Prime Video).

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24. Dead Space: Downfall

IMDB LogoIMDB Star
6.3/10
Rotten Tomatoes LogoN/A
Reelgood Logo
52/100
Released: 2008
Animation, Horror

What it's about: On a deep space mining mission to a remote planet, an ancient religious relic - thought to be proof of the existence of God - is unearthed and brought aboard. When the unholy artifact unleashes a long-dormant alien race, its glimpse of Heaven transforms the ship into a living Hell. A prequel to the events of the 2008 video game Dead Space.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $3.99 on 4 services (iTunes, Prime Video & 2 others).

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25. 1981

IMDB LogoIMDB Star
7.2/10
Rotten Tomatoes LogoN/A
Reelgood Logo
52/100
Released: 2009
Comedy, Independent

What it's about: Filmmaker Ricardo Trogi recalls the events surrounding his family moving to a new neighborhood when he was 11-years-old.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video & Kanopy) & rent or buy from $3.99 on 1 service (Prime Video).

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26. Extraterrestrial

IMDB LogoIMDB Star
5.0/10
Rotten Tomatoes Logo29%
Reelgood Logo
51/100
Released: 2014
Science-Fiction, Horror

What it's about: Five friends set out to a cabin in the woods for a fun weekend getaway that is, until extraterrestrial visitors turn it into a fight for their lives. The group is pulled from their reverie when a flickering object crashes deep in the woods. As they investigate, the friends stumble across an alien spacecraft, and its inhabitants have not arrived in peace.

Where to Watch: Available to stream on a popular subscription service (Prime Video & Showtime), stream on a popular TV everywhere service (Showtime) & rent or buy from $3.99 on 4 services (iTunes, Google Play & 2 others).

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27. Beyond The Sky

IMDB LogoIMDB Star
5.8/10
Rotten Tomatoes LogoN/A
Reelgood Logo
51/100
Released: 2018
Mystery, Science-Fiction

What it's about: A documentary filmmaker travels to a UFO convention in New Mexico where he meets a local artist with a dark secret. As they follow a trail of clues they discover disturbing sightings and question all they believe when they become immersed in the enigmatic culture of the Pueblo Indians.

Where to Watch: Available to stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 5 services (iTunes, Google Play & 3 others).

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28. Phil the Alien

IMDB LogoIMDB Star
5.2/10
Rotten Tomatoes Logo44%
Reelgood Logo
49/100
Released: 2004Rated: R
Comedy, Science-Fiction

What it's about: Phil the Alien crashes to Earth and find himself alone in the wilds of northern Canada. In the process of going home he goes from drunk to christian rock singer to mass murder.

Where to Watch: Available to stream on a popular subscription service (Prime Video), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 2 services (iTunes & Prime Video).

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29. Alien Trespass

IMDB LogoIMDB Star
5.6/10
Rotten Tomatoes Logo36%
Reelgood Logo
48/100
Released: 2009Rated: PG
Comedy, Horror

What it's about: In 1957 a fiery object crashes into a mountaintop in the California desert, bringing the threat of disaster to Earth. Out of the flying saucer escapes a murderous creature, the Ghota, bent on destroying all life forms on the planet. A benevolent alien from the spaceship, Urp, inhabits the body of Ted Lewis, an astronomer and with the help of Tammy, a diner waitress, sets out to save mankind.

Where to Watch: Available to watch free online (Tubi & Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $0.99 on 1 service (Prime Video).

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30. Robotech: The Shadow Chronicles

IMDB LogoIMDB Star
6.5/10
Rotten Tomatoes LogoN/A
Reelgood Logo
48/100
Released: 2006Rated: PG
Animation, Action & Adventure

What it's about: In the year 2044 AD, the human race has amped-up its space exploration and reached out to the stars through the miracle of ROBOTECHNOLOGY, but not without bringing intergalactic war upon the Earth itself. Heroes will die and allegiances will shift. But in the midst of combat, perhaps peace will spring up through the charred remains of battered history. One of the greatest science fiction sagas of all time continues...

Where to Watch: Available to watch free online (Tubi & Vudu), stream on a popular subscription service (Prime Video & Ameba) & rent or buy from $1.99 on 1 service (Prime Video).

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31. Beacon Point

IMDB LogoIMDB Star
5.8/10
Rotten Tomatoes LogoN/A
Reelgood Logo
48/100
Released: 2016
Thriller, Mystery

What it's about: A group of hikers lost on the Appalachian Trail stumble across an ancient secret that threatens their survival.

Where to Watch: Available to watch free online (Tubi & Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 4 services (iTunes, Google Play & 2 others).

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32. Invasion of the Bee Girls

IMDB LogoIMDB Star
5.0/10
Rotten Tomatoes Logo43%
Reelgood Logo
48/100
Released: 1973Rated: R
Horror, Mystery

What it's about: Neil Agar, a security agent with the State Department, is dispatched to Peckham, California to investigate the death of a bacteriologist working at government-sponsored Brandt Research. His investigation is soon complicated by a growing number of deaths, all men who died of congestive heart failure caused by sexual exhaustion.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video), stream on a popular TV everywhere service (Epix) & rent or buy from $3.99 on 1 service (Prime Video).

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33. The Sand

IMDB LogoIMDB Star
3.8/10
Rotten Tomatoes Logo40%
Reelgood Logo
48/100
Released: 2015
Horror, Science-Fiction

What it's about: Just when you thought it was safe to go back in the water again, you can’t even get across the sand! BLOOD BEACH meets SPRING BREAKERS in an ace monster mash-up of smart nostalgia and up-to-the-minute visual effects. After an all-night graduation beach party, a group of hung-over students wake up under blazing sun to find their numbers somewhat depleted. An enormous alien creature has burrowed down deep and anyone foolish enough to make contact with the sand finds themselves at the mercy of a sea of flesh-eating tentacles. Will they ever be able to escape its carnivorous clutches?

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 5 services (iTunes, Google Play & 3 others).

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34. Top of the Food Chain

IMDB LogoIMDB Star
6.2/10
Rotten Tomatoes LogoN/A
Reelgood Logo
46/100
Released: 1999Rated: PG-13
Comedy, LGBTQ

What it's about: An isolated Canadian town (populated by the weirdest group of people this side of Saturn) has seen its share of problems. First the nut factory closed, then the CATV antenna stopped broadcasting, and now something is gruesomely devouring the townsfolk! Can visiting atomic scientist (and expert on "cool fusion") Dr. Karel Lamonte solve the mystery before everyone disappears?

Where to Watch: Available to stream on a popular subscription service (Prime Video).

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35. Brave New Jersey

IMDB LogoIMDB Star
5.3/10
Rotten Tomatoes Logo47%
Reelgood Logo
46/100
Released: 2017Rated: R
Comedy

What it's about: A comedy that tells the story of a small New Jersey town on the night of Orson Welles' famed 1938 War of the Worlds radio broadcast, which led millions of listeners to believe the U.S. was being invaded by Martians.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 5 services (iTunes, Google Play & 3 others).

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36. Aliens on the Moon: The Truth Exposed

IMDB LogoIMDB Star
3.4/10
Rotten Tomatoes LogoN/A
Reelgood Logo
45/100
Released: 2014
Documentary, Science-Fiction

What it's about: Never-before-aired NASA footage presents evidence that the Moon is being used as a base.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video & Gaia) & rent or buy from $0.99 on 5 services (iTunes, Google Play & 3 others).

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37. There's Nothing Out There

IMDB LogoIMDB Star
5.8/10
Rotten Tomatoes LogoN/A
Reelgood Logo
44/100
Released: 1991
Comedy, Horror

What it's about: Seven teens head up to a cabin on the lake for spring break. Mike has studied all horror films on video, and recognizes the signs of foreshadowing of doom. The others dismiss his concerns as the workings of a person that watches too many videos, but there really is something out there, and the teens begin experiencing an attrition problem when they start stumbling into all the cliches found in a typical teen horror film.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 1 service (Prime Video).

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38. Meatball Machine

IMDB LogoIMDB Star
5.7/10
Rotten Tomatoes LogoN/A
Reelgood Logo
44/100
Released: 2005
Action & Adventure, Horror

What it's about: Capable of making bio-mechanical weapons out of human flesh, alien parasites grotesquely invade the Earth, turning their hosts into maniacal killers who seek and destroy each other to the bloody death! And yes, it s also a human love story, even though the budding romantics are infested with slimy, tumor-like globules.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $3.99 on 3 services (iTunes, Google Play & Prime Video).

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39. Lily C.A.T.

IMDB LogoIMDB Star
6.2/10
Rotten Tomatoes LogoN/A
Reelgood Logo
42/100
Released: 1987
Animation, Horror

What it's about: A captain and his crew travel across the universe in a ship that can travel for 20 years while the crew will age only 1 year. Soon the crew realizes that a criminal is onboard who is hoping to escape civilization. The crew must find who the criminal is, and find the source of a deadly virus that is destroying them one by one

Where to Watch: Available to watch free online (Tubi & Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $1.99 on 1 service (Prime Video).

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40. 5th Passenger

IMDB LogoIMDB Star
3.1/10
Rotten Tomatoes LogoN/A
Reelgood Logo
42/100
Released: 2018Rated: PG
Science-Fiction, Thriller

What it's about: Set in the aftermath of an oppressive class war, a pregnant officer aboard an escape pod must struggle to survive with her remaining crew when a mysterious and vicious life form attacks, determined to become the dominant species.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 5 services (iTunes, Google Play & 3 others).

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41. Galaxy of Horrors

IMDB LogoIMDB Star
4.6/10
Rotten Tomatoes LogoN/A
Reelgood Logo
42/100
Released: 2017
Horror, Science-Fiction

What it's about: Trapped in a damaged cryogenic pod, a man is forced to watch a series of horrific science-fiction tales while his life support systems run out. Featuring eight intense stories of the unknown and other-worldly, equally wonderful and terrifying. Visit the GALAXY OF HORRORS, if you dare! Curated from Rue Morgue & Unstable Ground's Little Terrors Festival.

Where to Watch: Available to watch free online (Tubi & Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 4 services (iTunes, Google Play & 2 others).

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42. Contamination

IMDB LogoIMDB Star
5.3/10
Rotten Tomatoes LogoN/A
Reelgood Logo
41/100
Released: 1980Rated: R
Action & Adventure, Independent

What it's about: A former astronaut helps a government agent and a police detective track the source of mysterious alien pod spores, filled with lethal flesh-dissolving acid, to a South American coffee plantation controlled by alien pod clones.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video & Shudder), stream on a popular TV everywhere service (Epix) & rent or buy from $1.99 on 4 services (iTunes, Google Play & 2 others).

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43. Psycho Bettys from Planet Pussycat

IMDB LogoIMDB Star
5.7/10
Rotten Tomatoes LogoN/A
Reelgood Logo
41/100
Released: 2011
Comedy, Musical

What it's about: Twenty years ago, a virus killed off all of the males on Planet Pussycat. Faced with inevitable extinction, Queen Betty of Pussycat hatched a plan to save her loyal subjects - the remaining population, known as Bettys. After receiving Earth's television signals, four chosen Bettys traveled to Earth in search of men for procreation or dismemberment.

Where to Watch: Available to stream on a popular subscription service (Prime Video) & rent or buy from $0.99 on 1 service (Prime Video).

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44. Evil Alien Conquerors

IMDB LogoIMDB Star
4.8/10
Rotten Tomatoes LogoN/A
Reelgood Logo
41/100
Released: 2003Rated: PG-13
Comedy, Science-Fiction

What it's about: Inept beings from the planet Kabijj land on Earth and attempt to behead all of its beings and take over the planet

Where to Watch: Available to watch free online (Tubi & Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $3.99 on 1 service (Prime Video).

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45. Anunnaki

IMDB LogoIMDB Star
3.0/10
Rotten Tomatoes LogoN/A
Reelgood Logo
41/100
Released: 2018
Science-Fiction, Documentary

What it's about: 450,000 years ago our ancestors descended from the heavens to engineer the first human beings. To us they were Giants that ruled as Gods over mankind. Now new evidence and scientific research acknowledges their existence on earth but reveals when they will return. The truth of their real origin and purpose is much more bizarre and amazing than anything previously believed. From the Garden of Eden to the Great Flood; from the God of the Bible to the secrets of Enoch all shall be revealed. (IMDB)

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video & ConTV) & rent or buy from $2.99 on 5 services (iTunes, Google Play & 3 others).

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46. Absence

IMDB LogoIMDB Star
4.1/10
Rotten Tomatoes Logo22%
Reelgood Logo
41/100
Released: 2013
Horror, Science-Fiction

What it's about: Doctors are baffled when an expectant mother wakes to find her nearly-to-term pregnancy apparently disappear overnight. Police investigate the situation as a missing child, and only her husband and brother trust her version of events.

Where to Watch: Available to watch free online (Vudu), stream on a popular subscription service (Prime Video, ConTV & Kanopy) & rent or buy from $2.99 on 5 services (iTunes, Google Play & 3 others).

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47. Mac and Me

IMDB LogoIMDB Star
3.3/10
Rotten Tomatoes LogoN/A
Reelgood Logo
40/100
Released: 1988Rated: PG
Action & Adventure, Family

What it's about: A Mysterious Alien Creature (MAC) escaping from nefarious NASA agents, is befriended by a young boy in a wheelchair. Together, they try to find MAC's family from whom he has been separated.

Where to Watch: Available to watch free online (Tubi & IMDb TV) & stream on a popular subscription service (Prime Video).

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48. U.F.O.

IMDB LogoIMDB Star
3.1/10
Rotten Tomatoes LogoN/A
Reelgood Logo
40/100
Released: 2012Rated: R
Science-Fiction, Comedy

What it's about: A group of friends awake one morning to find all electricity and power shut off and an immense alien aircraft hovering in the air above their heads. Suddenly this regular group of friends is battling to survive as the entire human race is threatened by the alien army hovering ominously above.

Where to Watch: Available to watch free online (Tubi), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 2 services (Prime Video & FandangoNOW).

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49. The Answer