How many movies have Arve Opsahl and Per Hagerup acted in together?

They have worked on 4 movies together! Their first movie together was Nydelige nelliker (1964) 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 and Dynamite-Harry Goes Wild (1973). They are most known for their comedy films together.