I don't what qualifies exactly as B or cult, but I like:
- Donnie Darko
- Lathe of Heaven
- Trainspotting
- A Clockwork Orange
- Brainscan
- Jesus' Son
- Hackers
- Natural Born Killers
- Slam
most of you said the same ones though, it seems, but Jesus' Son, based on the collection of short stories by Denis Johnson, is another great one that you guys should check out...it's really funny. Brainscan is an older sci-fi/horror film that came out around the same time as hackers i'd say and it's about interactive gaming so it's similar in some respects to hackers regarding the power of the compter...one we can all appreciate!