How many movies have Ennio Girolami and Pietro Nardi collaborated on?

They have worked on 3 movies together! Their first movie together was Two R-R-Ringos from Texas (1967) while their highest rated movie together was Franco, Ciccio and the Cheerful Widows (1968). They have not worked together since Don Franco and Don Ciccio in a Year of Protest (1970). They are most known for their comedy films together.