The movie is called "Jesus Camp", the trailer of which can be seen here. Be warned, it is very highly disturbing but not in a NSFW kind of way.
These are the same people who believe that the Islamic fundamentalists are wrong for training their children to be jihad soldiers for the Mujahideen, yet are "teaching born-again children to become dedicated Christian soldiers in God's army and are schooled in how to take back Anerica for Christ." Disturbing enough is the fact that the camp in question is called "Kids on Fire". Is it just me, or does such a name evoke images of Waco? Nice. Merry Koreshmas!
This is some sick shit. Seriously.