How many movies have Alberto Travaglini and Ennio Onorati collaborated on?

They have worked on 3 movies together! Their first movie together was Riuscirà l'avvocato Franco Benenato a sconfiggere il suo acerrimo nemico il pretore Ciccio De Ingras? (1971) while their highest rated movie together was Calling All Police Cars (1975). They have not worked together since Calling All Police Cars (1975).