How many movies have Charles Perrault and Joyce DiDonato collaborated on?

They have worked on 4 movies together! Their first movie together was Cendrillon (2011) while their highest rated movie together was Tchaikovsky: Iolanta / Bartók: Bluebeard's Castle (2015). They have not worked together since Massenet: Cendrillon (2018). They are most known for their music films together.