How many movies have Pirkko Raitio and T.J. Särkkä collaborated on?

They have worked on 21 movies together! Their first movie together was Eteenpäin – elämään (1939) while their highest rated movie together was Niskavuoren Heta (1952). They have not worked together since Kahden ladun poikki (1958). They are most known for their drama films together.