If you've got a lot of time to kill, and if you like space exploration, you could do worse than viewing The Science Channel's "Mars Rising. Part IV: The Human Factor". I met those qualifications on Friday.
Much of the program deals with how science plans to prevent the Mars astronauts from getting space dementia and killing each other during the 2+ year mission. I was very amused by the director's attempts to portray these mentally unstable astronauts: