How many movies have Barbara Willis Sweete and Mia Bongiovanni collaborated on?

They have worked on 17 movies together! Their first movie together was The Metropolitan Opera: Hansel and Gretel (2008) while their highest rated movie together was Berlioz: La Damnation de Faust (2008). They have not worked together since Rossini: Semiramide (2018). They are most known for their music films together.