How many movies have Erwin Geschonneck and Hans Hardt-Hardtloff acted in together?

They have worked on 7 movies together! Their first movie together was Ach, du fröhliche (1962) while their highest rated movie together was Carbide and Sorrel (1963). They have not worked together since Geschichten jener Nacht (1967). They are most known for their drama films together.