How many movies have Gundula Janowitz and Herbert von Karajan acted in together?

They have worked on 4 movies together! Their first movie together was Karajan Brahms Ein Deutsches Requiem (1978) while their highest rated movie together was Beethoven · Missa Solemnis - Herbert von Karajan (2020). They have not worked together since Beethoven · Missa Solemnis - Herbert von Karajan (2020). They are most known for their music films together.