How many movies have Josefin H. Vollmer and Mme. Ernestine Schumann-Heink acted in together?

They have worked on 1 movie together! Their first movie together was Mme. Ernestine Schumann-Heink (1927) and was their highest rated movie together. They have not worked together since Mme. Ernestine Schumann-Heink (1927).