How many movies have Irene Daland and Robert Liebmann collaborated on?

They have worked on 1 movie together! Their first movie together was Der Hund von Baskerville - 5 Teil: Dr. Macdonalds Sanatorium (1920) and was their highest rated movie together. They have not worked together since Der Hund von Baskerville - 5 Teil: Dr. Macdonalds Sanatorium (1920).