I caught this movie on Netflix a little while ago and wanted to mention it, because it's a really good indie science fiction film. Okay, yes, it breaks down into a little bit of high action shoot-'em-up toward the end, but I'm guessing that was as much for trailer fodder as anything. What matters is that, prior to that, it's good, high concept, thoughtful science fiction.
Here's the IMDB page for The Machine.
And here's the trailer: