"That and when you're doing live action you don't normally get to see the thing before it's in production. In this case we'd go in every couple weeks and look at animatic and sketches. The way they do it - is they'll put it up on a screen and the storyboard artist who worked on that sequence will talk you through it. Kind of like a pitch session. Then they would leave and we would sit there with the directors and say 'Alright - what if we change that? What if we do that?' It's very different from live action."

Source : Source: collider.com

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