How many movies have Alfred Bittins and Edith Hancke collaborated on?

They have worked on 2 movies together! Their first movie together was Madeleine Tel. 13 62 11 (1958) while their highest rated movie together was Am Sonntag will mein Süßer mit mir segeln gehn (1961). They have not worked together since Am Sonntag will mein Süßer mit mir segeln gehn (1961).