How many movies have Alessandro Canzio and Renzo Montagnani collaborated on?

They have worked on 2 movies together! Their first movie together was I'm a Zombie, You're a Zombie, She's a Zombie (1979) while their highest rated movie together was L'assistente sociale tutta pepe e tutta sale (1981). They have not worked together since L'assistente sociale tutta pepe e tutta sale (1981).