How many movies have Carlo Vanzina and Cesare Gelli collaborated on?

They have worked on 3 movies together! Their first movie together was Arrivano i gatti (1980) while their highest rated movie together was Horse Fever: The Mandrake Sting (2002). They have not worked together since Horse Fever: The Mandrake Sting (2002). They are most known for their comedy films together.