I knew a lot about this movie going in. A person is stationed on the moon for a three year contract to gather and send Helium 3 back to earth. Then things get complicated. Moon's only failing is that it's a fairly slow-moving film, largely because there's no significant action and there are only two characters, Sam Rockwell's Sam Bell, and Kevin Spacey as the on-station AI, Gerty. As the plot unfolds the philosophical elements take on a lot more depth than I was expecting, which for me, really made up for the slow segments. Sure, there wasn't action on screen, but that gave me a chance to consider the moral and psychological implications of what is being perpetrated on Sam Bell. I'm not sure if this was the point of the film, but it also explored the nature of human loneliness. The things we cling to to avoid loneliness and what happens when all those hooks are ripped out and we get to see for the first time how completely alone we can be.I couldn't find any major faults in this movie other than the aforementioned slow plot development, and that really wasn't a huge detractor. Even the relatively simple background music was pretty much perfect for the few segments it came up in. Finally, corporations that control 70% of the world's energy production are EVIL.