How many movies have Arthur Barrow and Tommy Mars acted in together?

They have worked on 3 movies together! Their first movie together was Frank Zappa: We Don't Mess Around (1978) while their highest rated movie together was Frank Zappa - Live in Paris 1980 (2008). They have not worked together since Frank Zappa - Live in Paris 1980 (2008). They are most known for their music films together.