How many movies have Eduard Tisse and Mikhail Nazvanov collaborated on?

They have worked on 4 movies together! Their first movie together was Ivan the Terrible, Part I (1944) 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.