Exceedingly cool animation of the Mars Rover Curiosity Mission from JPL, the best I've ever seen of this type. It ought to win some kind of special Oscar. (It panders just a tad to the public by using sound effects during the in-space part of the mission, but they're well done, at least.)
11:20-minute version: http://www.youtube.com/watch?v=P4boyXQuUIw 5:30-minute version: http://www.youtube.com/watch?v=BudlaGh1A0o The longer version shows more of what Curiosity will be doing after it lands (including "phoning home"). Great infographic showing the various components of the spacecraft, landing craft, and rover: http://www.space.com/13673-mars-science-laboratory-curiosity-rover-landing-infographic.html The whole assembly reminds me of a set of Russian Matryoshka nesting dolls, with one piece after another coming off to reveal something new inside.
