The story of Soviet film in the period covered by Peter Kenez is central to the history of world cinema. The author explores the roots of Soviet cinema in the film heritage of pre-Revolutionary Russia; the changes in content, style, technical means, and production capacities generated by the Revolution of 1917; the constraints on form and subject imposed from the 1930s in the name of Socialist Realism; the relative freedom of expression accorded to film-makers during World War Two; and the extraordinary repression during the final years of the Stalin era.