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The Best Alien Movies and TV Shows on Showtime

Finding a good Alien movie and TV show 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 and TV shows of all time streaming on Showtime.

VIEW: best
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1. Close Encounters of the Third Kind

IMDB LogoIMDB Star
7.6/10
Rotten Tomatoes Logo95%
Reelgood Logo
85/100
Released: 1977Rated: PG
Drama, Science-Fiction

What it's about: After an encounter with UFOs, a line worker feels undeniably drawn to an isolated area in the wilderness where something spectacular is about to happen.

Where to Watch: Available to stream on a popular subscription service (Showtime), stream on a popular TV everywhere service (Showtime) & rent or buy from $2.99 on 8 services (iTunes, Google Play & 6 others).

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2. I Am Number Four

IMDB LogoIMDB Star
6.1/10
Rotten Tomatoes Logo33%
Reelgood Logo
69/100
Released: 2011Rated: PG-13
Action & Adventure, Science-Fiction

What it's about: A teenage fugitive with an incredible secret races to stay one step ahead of the mysterious forces seeking destroy him in this sci-fi action thriller. With three dead and one on the run, the race to find the elusive Number Four begins. Outwardly normal teen John Smith never gets too comfortable in the same identity, and along with his guardian, Henri, he is constantly moving from town to town. With each passing day, John gains a stronger grasp on his extraordinary new powers, and his bond to the beings that share his fantastic fate grows stronger.

Where to Watch: Available to stream on a popular subscription service (Showtime), stream on a popular TV everywhere service (Showtime) & rent or buy from $2.99 on 8 services (iTunes, Google Play & 6 others).

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showtime

3. Knowing

IMDB LogoIMDB Star
6.2/10
Rotten Tomatoes Logo33%
Reelgood Logo
66/100
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 watch free online (Tubi TV), stream on a popular subscription service (Showtime), stream on a popular TV everywhere service (Showtime) & rent or buy from $1.99 on 8 services (iTunes, Google Play & 6 others).

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4. Extraterrestrial

IMDB LogoIMDB Star
5.0/10
Rotten Tomatoes Logo30%
Reelgood Logo
49/100
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 $2.99 on 6 services (iTunes, Google Play & 4 others).

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5. King Arthur and the Knights of the Round Table

IMDB LogoIMDB Star
2.1/10
Rotten Tomatoes LogoN/A
Reelgood Logo
24/100
Released: 2017
Action & Adventure

What it's about: In medieval England, Merlin and King Arthur banish the evil enchantress Morgana and her son Mordred to the ends of the universe as Morgana vows revenge. In present day, Knights descendant Penn doesn't take much stock in the legends of his supposed ancestors, even as the descendants meet in Thailand to practice fighting. But when Morgana and her son return to earth, armed with alien technology and hell-bent on destroying every last descendant of King Arthur and his knights, Penn must to come to terms with who he was born to be, and bring together the new Knights of the Round Table to save themselves and the earth from Morgana's total vengeance.

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