How many movies have Franca Mantelli and Gianni Ferrio collaborated on?

They have worked on 3 movies together! Their first movie together was Girls Will Be Girls (1980) while their highest rated movie together was The Honorable with His Lover under the Bed (1981). They have not worked together since The Honorable with His Lover under the Bed (1981). They are most known for their comedy films together.