How many movies have Bengt Eriksson and Per-Olov Westerberg collaborated on?

They have worked on 6 movies together! Their first movie together was Bror min och jag (1953) while their highest rated movie together was Åsa-Nisse ordnar allt (1955). They have not worked together since Åsa-Nisse i full fart (1957). They are most known for their comedy films together.