How many movies have Hans Hardt-Hardtloff and Karl-Ernst Sasse collaborated on?

They have worked on 9 movies together! Their first movie together was Auf der Sonnenseite (1962) while their highest rated movie together was Karla (1965). They have not worked together since Wolz – Life and Transfiguration of a German Anarchist (1973). They are most known for their drama films together.