How many movies have Cristiano Pogany and Eugenio Liverani collaborated on?

They have worked on 4 movies together! Their first movie together was Era una notte buia e tempestosa... (1985) while their highest rated movie together was Benvenuti in casa Gori (1990). They have not worked together since Caino e Caino (1993). They are most known for their comedy films together.