Summary of the movie 21 without spoilers-- MIT student needs money to pay the tuition for Harvard Medical School-- $300,000 +-- so a math professor takes advantage of him and recruits him into his team. The team counts cards at blackjack in Vegas casinos. They succeed at various casinos and attract the attention of a casino security man who tries to put a stop to their card counting.

Found 21 one of the most entertaining movies playing in the Villages theaters at this time.