I recently checked out this movie, and I have to say it was amazing. It's a very well made film about a true case in Texas where almost half a town was locked up on drug charges; the cases were eventually thrown out. This movie tells the story through the eyes of a young mother, played by Nicole Beharie. She's a Julliard grad and a newcomer who really sets the screen ablaze in this movie. It also stars Alfre Woodard, Charles Dutton, and Xzibit.
Go check this one out, it's so worth it.