"Animation wasn't so much an imitation of life - it was a punctuation of conversation. We always stayed on the one who was talking. It made for a very simple film that was very clear, and there were no unnecessary things going on all around the edges. If I'm going to say something to you then I'm going to do it with a certain amount of gestures; in-between the times I'm completely still. This was how we managed to get through 120 seconds of footage a day, when most studios were getting through 10 seconds. We'd never move a mouth, we'd change the expression, because people were watching the hands."