After 'Kong,' my knuckles have never recovered because I had to wear very heavy weights on my forearms and around my hips and ankles to get the sense of size and scale of the movement of the character You are telling your body that you are these things and that you're feeling these thoughts and that you're experiencing these experiences.

Performance capture is a tool that young actors will need in the next 10, 20 years. It's on the increase, as you say. It's not going away.

I expect at some point I'll probably want to go back on stage and do some theater, because I've not done theater in 10 years.

Working with people you adore and love. There's just a sense, all the way through all of the movies [Planet of Apes], that you're very rarely in a position where you have great material that you're passionate about and a big audience who love it, and the detail and nuance, and the exquisiteness of the fantastic actors and director with great writing.

Everybody thinks performance capture is about thrashing around and doing a lots of movement, but it's actually about being able to contain and think and be believed in a close-up, as much as anything else.

In terms of animation, animators are actors as well. They are fantastic actors. They have to draw from how they feel emotionally about the beat of a scene that they're working on. They work collaboratively.

I understand why people went nuts for 'The Artist.' We use words so much, it's nice to be able to explore a different way of communication, to be able to express silently what someone - or something - is thinking or feeling.