Equilibrium (social sci-fi not space sci-fi)
Gattaca (social sci-fi not space sci-fi)
and as it's been mentioned Terminator 1-4. (well 1 & 2 and 4 too)
Futurama movies q= (animated)
+1 for Reign of Fire ("middle earth" sci-fi)
+1 for Serenity
meh the new Star Trek (beware of lens flares -_-)

I know some good space sci-fi books if those at all interest you...

EDIT: a bonus BAD sci-fi movie(s & tv show): Honey I Shrunk the Kids