How many movies have Julius E. Herrmann and Julius Falkenstein acted in together?

They have worked on 5 movies together! Their first movie together was Dr. Mabuse, the Gambler: Part 1 – The Great Gambler (1922) while their highest rated movie together was Dr. Mabuse, the Gambler (1922). They have not worked together since Moral (1928). They are most known for their thriller films together.