How many movies have Eeva-Liisa Peronkoski and William Reunanen collaborated on?

They have worked on 4 movies together! Their first movie together was Prinsessa Ruusunen (1949) while their highest rated movie together was "Ei se mitään!" sanoi Eemeli (1962). They have not worked together since "Ei se mitään!" sanoi Eemeli (1962).