Here's a movie Die Yuppie Scum told me was good, and it's amazing Mickey Mouse has a better grip on what's going on than a lot of people. It's a Disney film called "Holes", about a teen prison/WTF. It's couched in comedy, but the undercurrent points out the abuses of these programs - lousy food, denial of water as punishment, forced labor, trouble with mail...I can't say too much more without making this a spoiler. It's got a good cast - Jon Voight as Mr. Sir, Sigourney Weaver, Patricia Arquette.
Check it out - it's got an ending former program kids will dig.