Plot
An MIT mathematics wiz is approached about becoming a member of a blackjack team led by one of his professors. The student needs money for medical school, and counting cards in the casinos could pay for his education. There is danger lurking at every turn as the blackjack team tries to evade the suspicions of casino security in order to pull off a massive score.
Where to watch 21?
21 is a crime movie featuring Tom McGowan and directed by Robert Luketic.
21 is currently streaming on DIRECTV.
It is also possible to buy 21 on AMC on Demand, Amazon Video, Apple TV, DIRECTV, Microsoft Store, Vudu and YouTube.