How many movies have Ivo de Wijs and Jan Boerstoel collaborated on?

They have worked on 3 movies together! Their first movie together was Kinderen voor Kinderen 2 (1981) while their highest rated movie together was Youp van 't Hek: Man vermist (1982). They have not worked together since Meisjes in de Grote Stad (1995). They are most known for their comedy films together.