How many movies have Gerd Michael Henneberg and Horst Giese acted in together?

They have worked on 5 movies together! Their first movie together was Robert Mayer, der Arzt aus Heilbronn (1955) while their highest rated movie together was Liberation: The Fire Bulge (1970). They have not worked together since Hammer or Anvil (1972). They are most known for their drama films together.