How many movies have Heikki Arala and Pertti Aherva collaborated on?

They have worked on 7 movies together! Their first movie together was Mitäs me sankarit (1980) while their highest rated movie together was Agentti 000 ja kuoleman kurvit (1983). They have not worked together since Pekka & Pätkä ja tuplajättipotti (1985).