There are countless times where you're trying to channel somebody who's not there, but that's what you have to do. But Audrey Geisel, who has executive produced this film and Horton, and who works remarkably close with me, is a great source of information. (The Simpsons creator) Matt Groening once told me that one of the most important roles that he fulfills on The Simpsons is being the keeper of the integrity of the original vision.

There will be increasing temptation to watch movies where you want to when you want to, and so I'm very focused on how we innovate Illumination Entertainment to keep the in-theater experience vibrant and urgent. In part I think it's what movies you're choosing to make and why those are films we feel are best enjoyed surrounded by a group of people. I also think it's continuing to look at things technologically.

Being branded to some subset of your fans is important when it comes to creating films and characters they're not familiar with. It's enormously difficult to market to a global audience, and it's becoming more difficult. A brand matters to parents, whereas kids are largely driven by their urgent reaction to the product. In the future, where there are going to be choices that have to be made by parents because it will be prohibitively expensive to access everything, those will be driven partially by brand.

I take his [Theodore Geisel] legacy very, very seriously. I know others may disagree because he's made such an impact on so many people that response to work becomes very personal, so people will have different points of view. But, at the core of this, I take the protection and the extension of his legacy very, very seriously. It's a very important part of my life.

Songs give you incredible opportunity to convey a tremendous amount in a relatively short period of time. The first thing that John Powell, our composer, says is, "Is the song engaging you to tap your toe?" If you're not tapping your toe, it doesn't matter what you're doing in the song, it's not going to work. But, if you can get the audience to be engaged by the song, then it gives you the opportunity to accomplish so much, in a very concise way.

The idea right now - and it may evolve - would be a live-action movie where some of his characters would be animated. To me, this movie is very much about the creative process.

No matter what happens with technology or whether you're in traditional animation or stop-motion or CG, the biggest challenge always is story. The flow of making the movie is usually determined by how your story is coming together, and when your story is straining and you can't quite get your hands around it, your entire production is straining.