How many movies have Arve Opsahl and Helge Reiss acted in together?

They have worked on 5 movies together! Their first movie together was Skulle det dukke opp flere lik, er det bare å ringe... (1970) while their highest rated movie together was The Olsen Gang For Full Music (1976). They have not worked together since På stigende kurs (1987). They are most known for their comedy films together.