Mr. Nobody
Monsieur Personne (original)
Starring Jules Berry, Josseline Gaël, André Berley, Henri Marchand, Georges Tourreil, Paul Amiot, Albert Broquin, Robert Ozanne, Jacques Vitry, Jean Kolb
It's a drama and comedy movie, and has a rating of 5.5 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Italy.