How many movies have Werner Riemann and Willi Neuenhahn acted in together?

They have worked on 4 movies together! Their first movie together was Der Streit um den Sergeanten Grischa (1968) while their highest rated movie together was Einfach Blumen aufs Dach (1979). They have not worked together since Einfach Blumen aufs Dach (1979). They are most known for their drama films together.