Very dark, intense movie that is anything but cliche, and doesn't pull the ace till the very end.
Samuel L. Jackson delivers as the main character, keyed up on the edge, also the note that "this movie has was written by a teacher" is quite haunting.
http://www.imdb.com/title/tt0118531/
This is not another "Dangerous Minds" this is a movie that's way more gloomy and intense.