How many movies have Bent Fabricius-Bjerre and Birthe Frost collaborated on?

They have worked on 12 movies together! Their first movie together was The Olsen Gang in Jutland (1971) while their highest rated movie together was The Olsen Gang Sees Red (1976). They have not worked together since The Olsen Gang's Last Trick (1998). They are most known for their comedy films together.