If you've got a spare 45 minutes and want to take a look back at the Apollo missions to the Moon, this documentary, 'Journey To The Moon: The Apollo Story' is well worth it. The film chronicles the Apollo program from its inception in 1961 through Apollo 11's successful moon landing to the final mission, Apollo 17, which took place 39 years ago this week. You'll see original footage (and those simple 1960's era animations that showed how lunar orbit insertion and rendezvous and docking would work) and hear from the astronauts themselves.
Addendum
-- Sorry, everyone -- I didn't realize this film doesn't have any viewing rights outside the US when I posted it. I would recommend what Eric posted below,
"When We Left Earth"
as a good (and longer!) substitute as a great look back at the Apollo missions.