Le bateau sur l'herbe
Starring Jean-Pierre Cassel, Claude Jade, John McEnery, Valentina Cortese, Paul Préboist, Micha Bayard, Pierre Asso, Jean de Coninck, Carla Marlier, Bernard Salvage
It's a drama and comedy movie, and has a rating of 5.8 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from France.