1.
Laura Marcus, 'The Tempo of Revolution: British Film Culture and Soviet Cinema in the 1920s', in Russia in Britain, 1880-1940: From Melodrama to Modernism, ed. by Rebecca Beasley and Philip Ross Bullock (Oxford: Oxford University Press, 2013)
2.
John Grierson, 'First Principles of Documentary', in Grierson on Documentary, ed. by Forsyth Hardy, rev. edn (Berkeley and Los Angeles, CA: University of California Press, 1966)
3.
Sergei Eisenstein, 'The Fourth Dimension in Cinema: 1929', in The Eisenstein Reader, ed. by Richard Taylor (London: British Film Institute, 1998)