How many movies have Aarre Koivisto and Björn Korander collaborated on?

They have worked on 15 movies together! Their first movie together was Rovaniemen markkinoilla (1951) while their highest rated movie together was Yhden yön hinta (1952). They have not worked together since Pekka ja Pätkä Suezilla (1958). They are most known for their comedy films together.