American History X for the 'kerb' scene. Scum was an extremely harsh film. A Clockwork Orange is legendary.
Nobody has mentioned I Spit On Your Grave... nasty little film. I thought Last House On The Left was severely overrated but The Virgin Spring which is an old Swedish film by Ingmar Bergman and was the basis for LHOTL was very good.
I watched Funny Games U.S last week and was impressed. I have never felt so uncomfortable watching a film, I had to look away occassionally just because it was so tense. Michael Pitt and Brady Corbett were phenomenally good. I want to see the original now.
Also, one to suggest... Audition... messed up film!