Moon. (poss. spoilers in comments) Go see this movie.
→[More:] I often say I'm not a sci-fi fan, but I guess I really am. I just like science fiction that's along the lines of Stanislaw Lem, Stanley Kubrick,
Gattaca, and J.G. Ballard (my favorite author, whom some call a sci-fi author though I think he was not.)
All that aside,
Moon is an incredible movie. Written and directed by Duncan Jones
(who was born Zowie Bowie, son of David and Angela Bowie) it treats space as a frontier (a very, very lonely place) and as an outer edge of human experience. Sam Rockwell is AMAZING as the lone astronaut on a mining facility that supplies 70% of the earth's energy needs, and is nearing the end of his 3-year contract. It's basically a one-man movie, and he pulls it off brilliantly.
The less you know going into this movie, the better, so don't read too many reviews or articles about it. Just really, seriously, you need to go see it. The partner and I saw it today and we're still hashing it out; the story is subtle enough, but consistent enough, that you have to figure some of it out after the movie ends.