How many movies have Duilio Coletti and Evaristo Signorini collaborated on?

They have worked on 3 movies together! Their first movie together was La maschera di Cesare Borgia (1941) while their highest rated movie together was Wanda the Sinner (1952). They have not worked together since The Italians They Are Crazy (1958). They are most known for their drama films together.