Just a quick recommendation: If you happen to be so lucky as to have a theater screening of Duncan Jones' "Moon" near you .. go see it. It's a brilliant movie with quite a lot of plot twists you either haven't seen in a long while or ever before. The general idea of the plot probably has been around in one or two scifi-novels but I don't reckon in any movie adaptions thus far. This movie really nails it's topic. I don't want to spoil too many beans, but .. if you're into HAL and you always thought he was too mean to actually appear anywhere near a space mission you'll definitely be enjoying this one extra ;-)