How many movies have François Truffaut and Nella Barbier collaborated on?

They have worked on 1 movie together! Their first movie together was The Man Who Loved Women (1977) and was their highest rated movie together. They have not worked together since The Man Who Loved Women (1977).

Crew
Director
Role
Liliane, la Karateka
Crew
Screenplay
Role
Un homme aux fénérailles (uncredited)
Crew
Producer