How many movies have Leonid Gaidai and Natalya Seleznyova collaborated on?

They have worked on 4 movies together! Their first movie together was Operation Y and Other Shurik's Adventures (1965) while their highest rated movie together was Ivan Vasilyevich Changes His Profession (1973). They have not worked together since Chest of Drawers Was Lead Through the Street... (1978). They are most known for their comedy films together.