The Third and the Seventh : a short film made entirely using CGI.
The Third & The Seventh from Alex Roman on Vimeo.
Advice: Click through to Vimeo and watch in full-screen, HD.
Of course doing this in 3D would be a whole order of magnitude(s) harder, and aren't people hard to do in CGI? But still, it's remarkable.
(HT Robin Hanson)