Being a math whiz pays -- at least when you use it to count cards in Las Vegas! In 21, Jim Sturgess plays Ben Campbell, a college senior who joins an underground club of blackjack card counters at MIT. Using an intricate number system, they find a way to beat the game and take the Vegas casinos for millions of dollars. But this isn't some story that a bunch of Hollywood bigwigs cooked up -- it really happened! Read on as Jim answers 21 questions for us.

1. What's your middle name?
Anthony.

2. What's your nickname?
It was Slim back at school -- Slim Jim.

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