How many movies have Ira Sikoruk and Leonid Sikoruk collaborated on?

They have worked on 3 movies together! Their first movie together was Физика в забавах. 1 Выпуск (1971) and was their highest rated movie together. They have not worked together since Физика в забавах. 3 Выпуск (1971). They are most known for their family films together.