How many movies have Simon B. Jones and Willi Montana collaborated on?

They have worked on 3 movies together! Their first movie together was Wiener Glut III (1990) 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).