How many movies have Valentina Yankovskaya and Yakov Kostyukovskiy collaborated on?

They have worked on 3 movies together! Their first movie together was Operation Y and Other Shurik's Adventures (1965) while their highest rated movie together was Kidnapping, Caucasian Style (1967). They have not worked together since The Diamond Arm (1969). They are most known for their comedy films together.