I've tried searching trough top lists for this movie. I only remember little from this movie, I may even be wrong off a general gender.
Anyway, the reason I'm pretty confident it actually belongs to this site, is because of this scene I can't forget. Just like in "The Truman Show" when Jimmy hits the wall of sky, so does the ( main ?) character from this movie: he hits some kind of digital road end, when he tries to exit the city. He drives a car, goes trough all the stop signs on the road, and meets the green lines, just like in unfinished computer 3d model of a world.
Is this single scene enough to identify the movie?