How many movies have Herwart Grosse and Horst Giese acted in together?

They have worked on 4 movies together! Their first movie together was Robert Mayer, der Arzt aus Heilbronn (1955) while their highest rated movie together was Ach, du fröhliche (1962). They have not worked together since Minna von Barnhelm oder Das Soldatenglück (1962). They are most known for their drama films together.