How many movies have Gaetano Donizetti and Ildebrando d'Arcangelo collaborated on?

They have worked on 3 movies together! Their first movie together was Donizetti: L'elisir d'amore (2005) and was their highest rated movie together. They have not worked together since The Metropolitan Opera: The Elixir of Love (2018). They are most known for their music films together.