The Series Mars Rising on Discovery Science Channel
Sorry I'm a bit late with this recommendation, but if you have the opportunity to catch any of the series (6 episodes total I believe, probably will be repeated numerous times as just about everything on the Discovery channels winds up that way) Mars Rising please do.
It is an indepth look at the perils and technical hurdles that stand in the way of manned space flight to Mars. A completely fascinating look things average citizens wouldn't even consider as issues that have either kept us from trying to go to Mars or that just wouldn't expect to be as big an issue as they very well could be. Space sickness, radiation poisoning, bone and muscle loss, keeping enough water available, hygiene issues, technical issues like how to actually power the space craft to and from Mars and much more.
After watching the series you should have a new found respect for the astronauts that may take the honor of going to Mars and the engineers and scientists that will create the equipment that will take them there.