How many movies have Nikolai Boyarsky and Valentina Kosobutskaya acted in together?

They have worked on 3 movies together! Their first movie together was To Be Happy! (1973) while their highest rated movie together was New Year Adventures of Masha and Vitya (1975). They have not worked together since Incredible Bet, or True Event That Ended Happily Hundred Years Ago (1984).