How many movies have Didi Perego and Umberto D'Orsi acted in together?

They have worked on 12 movies together! Their first movie together was The Girl from Parma (1963) while their highest rated movie together was Puro siccome un angelo papà mi fece monaco... di Monza (1969). They have not worked together since Cake in the Sky (1973). They are most known for their comedy films together.