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.

When you take that to the next level of guiding a group of filmmakers to actually depict him, it's even more challenging. The one that that I think everybody involved believes is that we won't move forward with this until we believe it's right. There's no deadline that a movie has to be made by. We have to believe that we have served the responsibility, however long it takes us to get to that point.

Where I think that 3D will fall apart is going to be as audiences now get treated to incredibly artistic utilizations of space. I think the films that are just sort of done as 3D transfer type films, the audience will perceive the difference in that.

When you listen to the music in this film [Despicable Me], it's working on the level of melody, but the other key element is lyrics. There are a number of songs in the film where the lyrics themselves are very much speaking to the essence of what Ted Geisel was setting out to do.

I think that every enduring story that has expressions over multiple periods, that role of being the keeper of the integrity of the vision is a very important role.

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.

Tone is an interesting question because part of the inspiration of looking to song is that Geisel himself - when you think about his animated version of The Grinch - embraced the idea of using songs in unconventional ways, as part of conveying a narrative. The use of music, in this film, is very unconventional, which I love.