Well, I'll contribute.
*SPOILERS* - Just in case I give away too much.
The Rules of Attraction - If you learned anything from most teen films about college, it's that they don't take it seriously. This flick is different in that it shows college in a very dark way especially with the opening/closing party scene (btw, it's the same scene). This is a college lifestyle portrayed as devoted entirely to sex, drugs, and partying. The film itself follows three characters. One a virginal skate chick that is loyal to her boyfriend who is in Europe. Another a closet gay guy whose gayness unravels throughout the entire picture. And the last one a guy who considers himself an emotional vampire and seems to have no emotion or feelings.
The film's first and second acts seem almost devoted to shock, scenes in the film show characters snorting coke, smoking pot, masturbating, and one even commiting suicide. Despite its shocking manner, ultimately the film is a depiction of the relationships collegians go through. Also, the directing by Roger Avary (who was the screenwriter for Pulp Fiction and also wrote this movie's script) is superb. He also tips its hat a little at the book's ending. The cast does a great job as well (especially Van Der Beek, who rose from crappy teen movie volour to make this his best performance). The film is just brilliance and certainly better than your average teen movie.