Strange Days is an absolute classic, props for already recommending that one
If you like esoteric, slightly weird old films check Altered States from 1980, Dark City 1998, the original Darkman 1990 movie is classic Sam Raimi. Can't recommend enough Daywatch and Nightwatch, totally awesome films.
A Japanese film called Returner(2002) which is kinda like all the good bits from the Matrix only better!
Hunter Prey 2007 is quite a cool, low budget sci-fi. It's not perfect but it is enjoyable
