John Chang created a blog to contradict some of the mistruths in "21".
http://mickeyrosa.com/
If you don’t know who John Chang is, here’s an interview with him.
http://www.blackjackforumonline.com/content/interviewJC.htm
There’s also mention of the whitewashing of the movie "21", despite the actual blackjack team members being Asian.
http://www-tech.mit.edu/V128/N15/21casting.html
And then there’s this: "Of Card-Counting, Startups, and the Real Story of the MIT Blackjack Team"
http://www.xconomy.com/2008/03/27/of-card-counting-startups-and-the-real-story-of-the-mit-blackjack-team/