How many movies have Hans Steinhoff and Hubert von Meyerinck collaborated on?

They have worked on 4 movies together! Their first movie together was Love's Carnival (1930) while their highest rated movie together was Robert Koch, der Bekämpfer des Todes (1939). They have not worked together since Robert Koch, der Bekämpfer des Todes (1939). They are most known for their drama films together.