Afterschool - well written and directed movie about degenerated young students with very interesting plot:

http://www.imdb.com/title/tt1224366/

Robert is a young American student at an elite East Coast preparatory school who accidentally captures on camera the tragic death of two classmates. Their lives become memorialized as part of an audio-visual assignment designed to speed up the campus-wide healing process. But the video memorial assignment results in an atmosphere of paranoia and unease among students and teachers.