How many movies have Arve Opsahl and Jon Berle acted in together?

They have worked on 4 movies together! Their first movie together was Oss atomforskere i mellom (1961) while their highest rated movie together was The Last Exploits of the Olsen Gang (1975). They have not worked together since The Olsen Gang and Dynamite-Harry On The Trail (1977). They are most known for their comedy films together.