How many movies have Alberto Sorrentino and Riccardo Billi acted in together?

They have worked on 12 movies together! Their first movie together was I cadetti di Guascogna (1950) while their highest rated movie together was The Clowns (1970). They have not worked together since The Clowns (1970). They are most known for their comedy films together.

Role
Venditore ambulante
Role
Venditore ambulante