How many movies have Christopher Cerf and Richard Hunt collaborated on?

They have worked on 3 movies together! Their first movie together was Out to Lunch (1974) while their highest rated movie together was Don't Eat the Pictures: Sesame Street at the Metropolitan Museum of Art (1983). They have not worked together since Sesame Street | Put Down the Duckie: An All-Star Musical Special (1988). They are most known for their comedy films together.