"The thing about animation is that it's a constantly changing process. They talk in terms of sequences - so there's like thirty different sequences in a movie and at anytime those were shifting or being taken out or being replaced."

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The great thing about the animation process is that is goes from, I write the lines, it goes to the actors, the actors bring a whole world to that, they bring the characters to life, then it goes to the animators, then it goes to the editor who cuts it together, and then you screen it and it goes back through the system again.

— Michael Arndt