How many movies have Boris Purgalin and Yevgeni Ginzburg collaborated on?

They have worked on 3 movies together! Their first movie together was Бенефис Сергея Мартинсона (1974) and was their highest rated movie together. They have not worked together since Бенефис. Людмила Гурченко (1978). They are most known for their music films together.