How many movies have Heinz Eckner and Rolf Olsen collaborated on?

They have worked on 2 movies together! Their first movie together was Die Kompanie der Knallköppe (1971) while their highest rated movie together was Ein Kaktus ist kein Lutschbonbon (1981). They have not worked together since Ein Kaktus ist kein Lutschbonbon (1981).