How many movies have Bruce Bickford and George Duke collaborated on?

They have worked on 3 movies together! Their first movie together was Frank Zappa: The Dub Room Special! (1982) while their highest rated movie together was Frank Zappa: A Token Of His Extreme (2013). They have not worked together since Frank Zappa: A Token Of His Extreme (2013). They are most known for their music films together.