How many movies have Dieter Mann and Willi Neuenhahn acted in together?

They have worked on 7 movies together! Their first movie together was Columbus 64 (1966) while their highest rated movie together was Stielke, Heinz, Fifteen... (1987). They have not worked together since Stielke, Heinz, Fifteen... (1987). They are most known for their drama films together.