How many movies have Alfred Gerasch and F. W. Schröder-Schrom acted in together?

They have worked on 4 movies together! Their first movie together was Trenck - Der Roman einer großen Liebe (1932) while their highest rated movie together was So Ended a Great Love (1934). They have not worked together since Fridericus (1937). They are most known for their drama films together.