I was just glancing at some of the responses to Rise of the Planet of the Apes, and noted that Andy Serkis' performances has been highly lauded. I'm not very knowledgeable about film technology, so I wondered if anyone knew how prominent his role would have been? As in, when an actor is used for a motion capture character, how much of the performance is the actor and how much is the computers? Note that Serkis' character in the film has hardly any dialogue.