How many movies have Bernard Musson and Serge Silberman collaborated on?

They have worked on 5 movies together! Their first movie together was Diary of a Chambermaid (1964) while their highest rated movie together was The Discreet Charm of the Bourgeoisie (1972). They have not worked together since That Obscure Object of Desire (1977). They are most known for their comedy films together.