Alexander Petrovich Dovzhenko, also Oleksandr Petrovych Dovzhenko, was a Ukrainian Soviet screenwriter, film producer and director. He is often cited as one of the most important early Soviet filmmakers, alongside Sergei Eisenstein, Dziga Vertov, and Vsevolod Pudovkin, as well as being a pioneer of Soviet montage theory.

Sergei Mikhailovich Eisenstein was a Soviet film director, screenwriter, film editor and film theorist. He was a pioneer in the theory and practice of montage. He is noted in particular for his silent films Strike (1925), Battleship Potemkin (1925) and October (1928), as well as the historical epics Alexander Nevsky (1938) and Ivan the Terrible. In its 2012 decennial poll, the magazine Sight & Sound named his Battleship Potemkin the 11th-greatest film of all time.