How many movies have Dieter Hallervorden and Gert Haucke acted in together?

They have worked on 4 movies together! Their first movie together was Is was, Kanzler? (1984) while their highest rated movie together was Non-Stop Trouble With the Experts (1988). They have not worked together since Non-Stop Trouble With the Experts (1988). They are most known for their comedy films together.