Mikhail Bulgakov’s play “Ivan Vasilievich” is the basis for the screenplay of the famous film by Leonid Gaidai “Ivan Vasilievich Changes Profession,” a plot known to practically everyone. The original play is aimed first of all at mocking morally degraded and degenerated Russian aristocracy and the pre-revolutionary elite. In the play, Tsar Ivan the Terrible ends up in 1930s Moscow, when the play itself was written. And, of course, the entire work is full of detailed descriptions and jokes of that time, which makes the play unique and incomparable.