How many movies have Gerhard Hartig and Kurt Waitzmann acted in together?

They have worked on 3 movies together! Their first movie together was Ich zähle täglich meine Sorgen (1960) while their highest rated movie together was The Secret of the Black Trunk (1962). They have not worked together since The Hunchback of Soho (1966). They are most known for their thriller films together.