How many movies have Svetozar Rusakov and Vyacheslav Kotyonochkin collaborated on?

They have worked on 4 movies together! Their first movie together was Ну, погоди! Фальшивый мотив (1977) and was their highest rated movie together. They have not worked together since Ну, погоди! Запрещенный прием (1979). They are most known for their animation films together.