How many movies have Guido Herzfeld and Kurt Ehrle acted in together?

They have worked on 2 movies together! Their first movie together was Der Weg, der zur Verdammnis führt 1. Teil - Das Schicksal der Aenne Wolter (1918) while their highest rated movie together was Poor Lena! (1918). They have not worked together since Poor Lena! (1918).