How many movies have Dominique Lavanant and Yves Rousset-Rouard collaborated on?

They have worked on 3 movies together! Their first movie together was French Fried Vacation (1978) while their highest rated movie together was French Fried Vacation 2: The Bronzés go Skiing (1979). They have not worked together since French Fried Vacation 2: The Bronzés go Skiing (1979). They are most known for their comedy films together.