The Flowers of St. Francis
Francesco, giullare di Dio (original)
Starring Aldo Fabrizi, Gianfranco Bellini, Peparuolo, Severino Pisacane, Roberto Sorrentino, Nazario Gerardi, Arabella Lemaitre, Renzo Rossellini
It's a drama and history movie, and has a rating of 7.3 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Belgium.