How many movies have Oskar Ketelhut and Sigmar Börner collaborated on?

They have worked on 5 movies together! Their first movie together was Ohnsorg Theater - Manda Voss wird 106 (1993) and was their highest rated movie together. They have not worked together since Ohnsorg -Theater - Morgen wird alles anders (2000). They are most known for their comedy films together.