How many movies have Roberto Pregadio and Tino Santoni collaborated on?

They have worked on 5 movies together! Their first movie together was The Swindlers (1963) while their highest rated movie together was Franco, Ciccio e il pirata Barbanera (1969). They have not worked together since Mazzabubù... quante corna stanno quaggiù? (1971). They are most known for their comedy films together.