How many movies have Frank Prange and Tanja Fielmann acted in together?

They have worked on 4 movies together! Their first movie together was Hüttenzauber (1989) while their highest rated movie together was Heidi 3: In der Heidi ist es doch am schönsten (1990). They have not worked together since Heidi 3: In der Heidi ist es doch am schönsten (1990). They are most known for their comedy films together.