How many movies have Harry Piel and Margot Thisset collaborated on?

They have worked on 3 movies together! Their first movie together was Der Reiter ohne Kopf, 1. Teil - Die Todesfalle (1921) and was their highest rated movie together. They have not worked together since Der Reiter ohne Kopf, 3. Teil - Harry Piels schwerster Sieg (1921).