How many movies have Helmut Zwickl and Herbie Blash acted in together?

They have worked on 1 movie together! Their first movie together was Jochen Rindts letzter Sommer - Ein Toter wird Weltmeister (2010) and was their highest rated movie together. They have not worked together since Jochen Rindts letzter Sommer - Ein Toter wird Weltmeister (2010).