How many movies have Herbert von Karajan and José van Dam acted in together?

They have worked on 8 movies together! Their first movie together was Otello (1973) while their highest rated movie together was Karajan - Bruckner - Symphonies Nos. 8 & 9 (2007). They have not worked together since Beethoven · Missa Solemnis (Berliner Philharmoniker, Herbert von Karajan) (2008). They are most known for their music films together.