How many movies have Helmut Grewald and Helmut Schreiber collaborated on?

They have worked on 4 movies together! Their first movie together was Der Tod hat ein Gesicht (1961) while their highest rated movie together was Moritz in der Litfaßsäule (1983). They have not worked together since Moritz in der Litfaßsäule (1983). They are most known for their drama films together.