How many movies have Billy Davis Jr. and Marilyn McCoo acted in together?

They have worked on 3 movies together! Their first movie together was The Woody Allen Special (1969) while their highest rated movie together was The 5th Dimension Special: An Odyssey in the Cosmic Universe of Peter Max (1970). They have not worked together since Rock 'n' Roll Sports Classic (1978). They are most known for their music films together.