Geek movies

Get over to the Guardian's website and cast your vote for your all time favorite geek movie. There seems to be a little confusion over what consitiutes a geek, as opposed to a nerd, nevermind what actually makes a "geek movie."

I digress.

For the purposes of this survey I small restrict it to movies not necessarily about computers and technology, but then again not completely divorced from them. They should have a sci-fi flavour to them and should foremost make you think. For what it's worth here is my list:

1. Blade Runner (Ridley Scott, 1982)
2. Pi (Darren Aronofsky, 1998)
3. 2001: A Space Odyssey (Stanley Kubrick, 1968)
   
4. Twelve Monkeys (Terry Gilliam, 1995)
5. eXistenz (David Cronenberg, 1999)
6. Gattaca (Andrew Niccol, 1997)
   
7. Dark Star (John Carpenter, 1974)

What would you choose?