How many movies have Günter Mack and Heinz Weiss acted in together?

They have worked on 4 movies together! Their first movie together was Begründung eines Urteils (1966) while their highest rated movie together was Jerry Cotton: Death and Diamonds (1968). They have not worked together since Max Hölz. Ein deutsches Lehrstück (1972). They are most known for their drama films together.