Everybody has a wicked side, whether they are six or sixty, and yet so often storytelling draws a sharp line between good and evil.

You have to start with the notion that you pick the actor who's going to embody the role, the best person that you can find. If you don't start with that then it sort of defies the whole purpose of trying to make the best film that you can make.

I think that it's important for a film that's in 3D that the filmmakers create the movie from a staging and scene planning standpoint with the dimensional space as one of their storytelling components.

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.

I've carried on, in that same tradition, with my kids. Aside from just his brilliance, in my estimation, I think he had one of the great imaginations of the 20th century. One of the reasons why the tradition carries on, all these years later, is because, as a parent, those are the books that you go to and pull off the shelf because they never stop delighting you.

We have a process that continually looks back to him for guidance, but it also combines that with a tremendous amount of discovery and invention, as well, because of the demands of the medium and the opportunities of the medium.

Why did Ted Geisel end up writing and illustrating for young minds? He has specific imagery in the book, and we never would have moved beyond the discussion phase, if we couldn't have found an expression for The Lorax, dimensionally, that was true to the soul of what comes through in his simple line drawings, on the page.