How many movies have Gisela Haller and Janina Richter collaborated on?

They have worked on 1 movie together! Their first movie together was Zwanzig Mädchen und die Pauker: Heute steht die Penne kopf (1971) and was their highest rated movie together. They have not worked together since Zwanzig Mädchen und die Pauker: Heute steht die Penne kopf (1971).