How many movies have Arja Niska and Senja Soitso collaborated on?

They have worked on 30 movies together! Their first movie together was Serenaadi sotatorvella eli sotamies Paavosen tuurihousut (1939) while their highest rated movie together was Oi, aika vanha, kultainen…! (1942). They have not worked together since En ole kreivitär (1945). They are most known for their comedy films together.