Jugend von heute
Rendez-vous de juillet (original)
Starring Daniel Gélin, Brigitte Auber, Nicole Courcel, Pierre Trabaud, Maurice Ronet, Henri Belly, Jacques Fabbri, Robert Lombard, Jean Pommier, Charles Camus
It's a drama and comedy movie, and has a rating of 7.1 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Switzerland.