How many movies have Edmondo Tieghi and Ennio Morricone collaborated on?

They have worked on 3 movies together! Their first movie together was A Fistful of Dollars (1964) while their highest rated movie together was For a Few Dollars More (1965). They have not worked together since A Genius, Two Friends, and an Idiot (1975). They are most known for their western films together.