Reuben Langdon is a motion capture artist in motion pictures and games — you've probably directed his actions without knowing it in such games as Resident Evil 5 and Dead Rising. Most recently he's been working on James Cameron's epic CG film, Avatar. He took some time out of his busy backflipping schedule to talk to us about motion capture, having his own studio, and working with Cameron on the biggest and most ambitious CG movie of all time.