How many movies have Ben Burtt and George Lucas collaborated on?

They have worked on 28 movies together! Their first movie together was Star Wars (1977) while their highest rated movie together was The Empire Strikes Back (1980). They have not worked together since Star Wars: The Force Awakens (2015). They are most known for their action films together.

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Baron Papanoida (uncredited)
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'Freeze' Officer in Endor Bunker / Tortured Power Droid (voice) (uncredited)
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