How many movies have Harald Halgardt and Herwart Grosse acted in together?

They have worked on 6 movies together! Their first movie together was Robert Mayer, der Arzt aus Heilbronn (1955) while their highest rated movie together was Professor Mamlock (1961). They have not worked together since Suturp - eine Liebesgeschichte (1981). They are most known for their drama films together.