The most fun is to inhabit the world where cartoon physics is king. And that just means that things move with kind of an energy and exaggeration and appeal that is different from what we see in our world. We're bound by, at least, Newton's Laws of physics here and in animation we're not. So, director's can be extremely eccentric, you can sculpt motion in animation in a way that you just can't do any other way. In any other performance medium.

I remember feeling that technology was like trying to draw with your foot. In a ski boot. It was the most indirect way to work imaginable, but the potential had us all excited. I started in stop motion.

I get a lot of credit for Tron. They called us scene choreographers back then because the animation unit wouldn't let us be called animators because we were working on computers. And we were some of the first people ever to make 3-D computer animation.

You look at Japan and Hayao Miyazaki's films are the biggest films ever made in Japan; domestically there and they play to critical acclaim around the world. He won't put more then 5 or 10 percent computer imagery in his movies. It's disappointing to me. It's a silly choice that some studios made to move out of animation. It's part of the unfortuneate preconception that I think the public has going into see animation.

I think I probably am doing animation because I started as a kid and I learned on my own, and I worked by myself a lot. It's the only thing I really prepared myself to do in any kind of depth. And I've just kind of imbibed the technology and techniques and the thinking about telling stories this way. It just feels natural to me.

Someday, I'd like to sit down with a small group of people, in a relaxed environment, and make a film that feels more independent. That way we can be a little more free in terms of storytelling and subject.

We can't worry about competition. Besides, you aren't competing with anyone but yourself. They have nothing to do with whether you make a good movie or not.