How many movies have Agnes Baltsa and José van Dam acted in together?

They have worked on 5 movies together! Their first movie together was Mahler - Symphonies Nos. 7 & 8 (1975) while their highest rated movie together was Karajan - Bruckner - Symphonies Nos. 8 & 9 (2007). They have not worked together since Karajan - Bruckner - Symphonies Nos. 8 & 9 (2007). They are most known for their music films together.