A historical re-enactment of Russia’s first mass trial for treason against the state, August 1936. Includes, “The Trial of Sixteen” and “The Trial of Twenty One”. Interesting film – very well made.
Overview — Encyclopedia Britannica synopsis of the Moscow Show Trials of the 1930s
The Great Terror: Stalin’s Purge of the Thirties, by Robert Conquest
The Great Terror A Reassessment, by Robert Conquest
Stalin and the Kirov Murder, by Robert Conquest