How many movies have Nikolai Cherkasov and Semyon Timoshenko collaborated on?

They have worked on 3 movies together! Their first movie together was Концерт на экране (1940) while their highest rated movie together was Ivan the Terrible, Part II: The Boyars' Plot (1958). They have not worked together since Ivan the Terrible, Part II: The Boyars' Plot (1958). They are most known for their drama films together.