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.

Mikhail Osipovich Eisenstein was a civil engineer and architect working in Riga, the present-day capital of Latvia, when the city was part of the Russian Empire. He was active as an architect in the city at a time of great economic expansion and consequent enlargement, which coincided with the flourishing of Art Nouveau architecture. During the years 1901–1906, Eisenstein designed many of the best-known Art Nouveau buildings of Riga. His son, Sergei Eisenstein, became a well-known Soviet film director.