Ben Campbell is a young, highly intelligent, student at M.I.T. in Boston who strives to succeed. Wanting a scholarship to transfer to Harvard School of Medicine with the desire to become a doctor, Ben learns that he cannot afford the $300,000 for the four to five years of schooling as he comes from a poor, working-class background. But one evening, Ben is introduced by his unorthodox math professor Micky Rosa into a small but secretive club of five. Students Jill, Choi, Kianna, and Fisher, who are being trained by Professor Rosa of the skill of card counting at blackjack.21 featuring Jim Sturgess and Kevin Spacey is streaming with subscription on Prime Video, available for rent or purchase on iTunes, available for rent or purchase on Google Play, and 4 others. It's a biography and crime movie with a low Rotten Tomatoes (critics) score of 35% and a better than average IMDb audience rating of 6.8 (209,447 votes).