How many movies have Gaetano Donizetti and Jean-François-Alfred Bayard collaborated on?

They have worked on 3 movies together! Their first movie together was Donizetti: La Fille du Régiment (2007) while their highest rated movie together was The Metropolitan Opera: La Fille du Régiment (2008). They have not worked together since The Metropolitan Opera: La Fille du Régiment (2019). They are most known for their music films together.