The Prestige (competing magicians inventing new tricks, cameo by Nikola Tesla):

http://www.metacritic.com/film/titles/prestige

Iron Man (fun movie where the main character is hacker/inventor):

http://www.metacritic.com/film/titles/ironman

There Will Be Blood (not a hacker movie per se, but still kind of startup-relevant, it's about creation of the oil empire from scratch):

http://www.metacritic.com/film/titles/therewillbeblood

Odyssey 5 (TV series about a group of astronauts sent back in time to prevent destruction of Earth, AI plays a significant role):

http://www.imdb.com/title/tt0318236/

Few Japanese cyberpunk animated classics:

Ghost in the Shell 1 & 2:

http://www.imdb.com/title/tt0113568/

http://www.imdb.com/title/tt0347246/

Akira:

http://www.imdb.com/title/tt0094625/

Bonus: if you liked Primer, you may like also Timecrimes (even though it's not a hacker movie):

http://www.metacritic.com/film/titles/timecrimes