How many movies have Piero Cappuccilli and Plácido Domingo acted in together?

They have worked on 3 movies together! Their first movie together was Verdi Un Ballo in Maschera (1975) while their highest rated movie together was Il Trovatore - Verdi (1978). They have not worked together since Il Trovatore - Verdi (1978). They are most known for their music films together.