Moon is a movie about a future where the majority of humans power comes from harvesting the rocks on the moon and tells the story of Sam Bell who has almost through with his work contract over there. The acting is probably the best and most distinct part of this movie. Sam Rockwell is basically the only cast in the entire hour and forty minutes and depicts multiple sides to this Sam Bell.
Its not revolutionary movie. it's pretty much a classic space station. It has several gorgeous shots of the moon though, the monochrome grey and long shadows very effectively created a sense of cold and isolation.
The pacing was off. There was no real suspense leading up to the turning point and the way they dealt with the aftermath was predictable and boring.

Granted, new ideas are difficult to come by, so there's nothing wrong with re-using some old one - only it's got to be done better. Moon has taken so much from other films but just hasn't added anything new or different or interesting.
Moon is a good film to watch and even a much better movie if you have nothing to compare it to.