How many movies have Lorenzo Costantini and Luciano Martino collaborated on?

They have worked on 4 movies together! Their first movie together was Anna: the Pleasure, the Torment (1973) while their highest rated movie together was Desirable Teacher 2 (1982). They have not worked together since Mezzo destro mezzo sinistro - 2 calciatori senza pallone (1985). They are most known for their comedy films together.