How many movies have Adam Holender and Evan A. Lottman collaborated on?

They have worked on 4 movies together! Their first movie together was Puzzle of a Downfall Child (1970) while their highest rated movie together was The Effect of Gamma Rays on Man-in-the-Moon Marigolds (1972). They have not worked together since The Seduction of Joe Tynan (1979). They are most known for their drama films together.