How many movies have Richard Wagner and Wendy Bryn Harmer collaborated on?

They have worked on 3 movies together! Their first movie together was The Metropolitan Opera: Götterdämmerung (2012) while their highest rated movie together was The Metropolitan Opera: Das Rheingold (2013). They have not worked together since The Metropolitan Opera: Die Walküre (2019). They are most known for their music films together.