How many movies have Boris Travkin and Valeri Sharov collaborated on?

They have worked on 1 movie together! Their first movie together was Загадки звёздного неба: Откуда взялись телескопы (1985) and was their highest rated movie together. They have not worked together since Загадки звёздного неба: Откуда взялись телескопы (1985).