How many movies have Riccardo Petrazzi and Rinaldo Zamperla acted in together?

They have worked on 5 movies together! Their first movie together was Today We Kill, Tomorrow We Die! (1968) while their highest rated movie together was The Cynic, the Rat & the Fist (1977). They have not worked together since The Night of the Sharks (1988). They are most known for their action films together.