Fairly entertaining movie, but once again we find the white man portrayed as the bad man. I happen to know a lot of good people of every race, why this trend in movies today. The white prisoners character was hardly developed, he was just a scared boy who apparently ended up in prison over a minor incident (unless he was lying). It stretched the story to have HIM kill the teacher character in the end. It seemed to be added as an afterthought, like 'lets have the white boy kill him'
I'm not saying a white person wouldn't have done this, obviously there are good and bad and criminal people of every race. What I'm saying is its the norm nowdays to put down white people, the movie industry in general has become more than a little racist.