
( , Wed 20 May 2015, 18:41, Reply)

It would have been loads of extra work to produce clean skeletal animations for every scene in a film, on the off chance that they might be reused down the line. They either dug out the original animation cells and traced them, or more likely just rotoscoped frames from previous movies.
( , Wed 20 May 2015, 21:34, Reply)