Passione
Un viaggio alle radici della canzone napoletana e come essa ha influenzato la musica in tutto il mondo.
Starring Lina Sastri, Massimo Ranieri, Peppe Servillo, Fiorello, John Turturro, Peppe Barra, Enzo Avitabile, Raiz, Max Casella, James Senese
It's a history and music movie, and has a rating of 6.9 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Italy.