This chap took the original 4 frames per second shaky video, and worked on it frame by frame to enhance the detail and smooth the motion to give an incredible HD version.
(It starts black, then the heat shield is ejected, and you see it falling away, then Curiosity itself slowly falls down to land.)
Enhanced version:
Comparison of original with enhanced version:
To get the full effect, go to http://www.youtube.com/watch?v=Esj5juUzhpU and select 1080p HD full screen.