How many movies have Charly Berger and Karl Kahlmann acted in together?

They have worked on 2 movies together! Their first movie together was Robert Koch, der Bekämpfer des Todes (1939) while their highest rated movie together was Akrobat schö-ö-ö-n (1943). They have not worked together since Akrobat schö-ö-ö-n (1943).