Moon (2009)

For three long years, Sam Bell has been on the moon dutifully working solo harvesting Helium 3 for Lunar, a company that claims it holds the key to solving humankind's energy crisis. As Sam's contract comes to an end, the lonely astronaut looks forward to returning to his wife and daughter down on Earth, where he will retire early and attempt to make up for lost time. With only two weeks to go before he begins his journey back to Earth, Sam starts feeling strange. Then, when a routine extraction goes horribly awry, it becomes apparent that Lunar hasn't been entirely straightforward with Sam.

Official website: http://www.MoonMovie.com.au