Science fiction movies about isolated individuals who begin to experience things that may or may not actually be happening is nothing new, but no other genre does it better than sci-fi, which has the added benefit of the vastness of space as its background. Add some paranoia, a lot of grungy technology, and isolate the character within an inch of his life, and you have yourself the makings of a great psychological thriller. That seems to be what writer/director Duncan Jones is going for with his movie “Moon”, which stars Sam Rockwell as a lunar miner who begins to suspect that the company he’s working for may be trying to kill him. Or at least, keep him from leaving the moon. Is it real? Is it all in his head, the product of prolonged isolation on the moon?