How many movies have Giuseppe Colombo and Vincenzo Vollero collaborated on?

They have worked on 1 movie together! Their first movie together was Tinto Brass Presents Erotic Short Stories: Part 4 - Improper Liaisons (1999) and was their highest rated movie together. They have not worked together since Tinto Brass Presents Erotic Short Stories: Part 4 - Improper Liaisons (1999).