How many movies have Marcello Giannini and Mario Amendola collaborated on?

They have worked on 5 movies together! Their first movie together was How I Lost the War (1947) while their highest rated movie together was I ragazzi dell'Hully Gully (1964). They have not worked together since I ragazzi dell'Hully Gully (1964). They are most known for their comedy films together.