[on 'Kung Fu Panda 2'] We have characters who are so complicated we couldn't have done them before. The main character, Lord Shen, is insanely complicated and, technologically, we had to figure out how to make that happen. We had to figure out how to make massive numbers of characters in a shot all move believably and not have the computer explode. We had to have explosions that had to be different, instead of some Civil War kind of cannon. And on top of all that technical stuff we had to make sure we had a good story, built on characters who are solid, and follow what the character needs.