How many movies have Alfons Höckmann and Karl-Heinz Bieber collaborated on?

They have worked on 4 movies together! Their first movie together was Anatomie eines Unfalls (1965) while their highest rated movie together was Kennwort: Fasanenjagd München 1945 (1975). They have not worked together since Kennwort: Fasanenjagd München 1945 (1975). They are most known for their drama films together.