How many movies have Jop Pannekoek and Mark Stoop collaborated on?

They have worked on 1 movie together! Their first movie together was Youp van 't Hek: Oudejaarsconference 1989 (1989) and was their highest rated movie together. They have not worked together since Youp van 't Hek: Oudejaarsconference 1989 (1989).