How many movies have Onofrio Coppola and Renzo Caroli collaborated on?

They have worked on 5 movies together! Their first movie together was Io tigro, tu tigri, egli tigra (1978) while their highest rated movie together was Arrivano i miei (1983). They have not worked together since Arrivano i miei (1983). They are most known for their comedy films together.