How many movies have Alf Hallgren and Kirsten Kaurin Bohwim collaborated on?

They have worked on 4 movies together! Their first movie together was Congratulations Andersens! (1966) while their highest rated movie together was The Olsen Gang and Dynamite-Harry Goes Wild (1973). They have not worked together since The Olsen Gang meets The King and the Jackal (1974). They are most known for their comedy films together.