How many movies have Matthias Hölle and Richard Wagner collaborated on?

They have worked on 4 movies together! Their first movie together was The Ring Cycle: Das Rheingold (1991) while their highest rated movie together was The Ring Cycle: Die Walkure (1992). They have not worked together since Wagner: Die Meistersinger von Nürnberg (1999). They are most known for their music films together.