21, a film adaptation of Ben Mezrich's Bringing Down the House, is a bit more fictional than the book, but quite entertaining. The plot is based (in this case, loosely) on the true story of five MIT math students who developed a team-based system to beat a Vegas blackjack pit. The kids count cards, which isn't technically illegal, but is frowned upon by the casinos and the thugs they hire to "dissuade" would-be cheaters. One such thug, and former card counter (Laurence Fishburne), has a special interest in the team, and works to help the casinos keep their money.While the movie's "plot twists" are fairly predictable, the cast is engaging and the story itself is appealing. The newest member of the team, Ben Campbell (Jim Sturgess), is innocent but brilliant and is (predictably) corrupted by his success at card counting. His committment to the team is strengthened (again, predictably) by the presence of love-interest Jill Taylor (Kate Bosworth). The mentoring - he actually says "you remind me of myself" - of Professor Micky Rosa (Kevin Spacey) gets him in the game, but (again, predictably) eventually the student must challenge the teacher.
An entertaining movie based on a true story, 21 is a fast-paced film peppered with clever, snarky dialogue. The actors are well-cast, and give the performances one expects. The movie devolves from a unique and true story of the no-longer-possible exploits of a bunch of whiz-kids into a morality tale, but I'd say it's a good rental anyway.
