How many movies have Diego De Santis and Stefano Fresi collaborated on?

They have worked on 4 movies together! Their first movie together was Tutto l'amore del mondo (2010) while their highest rated movie together was I Can Quit Whenever I Want (2014). They have not worked together since I Can Quit Whenever I Want 3: Ad Honorem (2017). They are most known for their comedy films together.