How many movies have Ernst Grabbe and Ulla Mahrt acted in together?

They have worked on 4 movies together! Their first movie together was Ohnsorg Theater - Gastwirt Goebel (1966) while their highest rated movie together was Otto und die nackte Welle (1968). They have not worked together since Otto und die nackte Welle (1968). They are most known for their comedy films together.