How many movies have Kirsten Kaurin Bohwim and Mattis Mathiesen collaborated on?

They have worked on 9 movies together! Their first movie together was Operasjon Sjøsprøyt (1964) while their highest rated movie together was The Olsen Gang and Dynamite-Harry Goes Wild (1973). They have not worked together since But The Olsen Gang Was Not Dead! (1984). They are most known for their comedy films together.