Fox came to us with the concept for ICE AGE and they came to us with the first draft of the script. They also gave us a mandate to make it into a comedy from what was previously a rather dramatic action concept.

If anything, it's a little intimidating because there's usually a lot of brilliant work and a lot of brilliant ideas out there that you wish you had thought of, or that you just admire for the originality of it or the difference from what you've been thinking of.

I'm surrounded by a lot of live-action movie professionals, and I'm just taking their lead, as far as what to schedule to do next. I'm guessing the challenge is going to be not having two characters together, and shooting the live-action without having the animation. In animation, you get to get in between every frame and you work it all out together.

On these feature films there are people on the staff who can draw 100 times better then I can, and animate better then I can, and light better then I can, write comedy better then I can. I basically am in the middle of kind of a creative typhoon and I'm just kind of talking the film up on to the screen. Minute to minute, meeting by meeting, day by day.

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.

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.

I grew up watching classic animation, and I have always felt that the roots of animation is in fantasy and taking it in places that you can't go, any other way.