On the dramatic stage the method of interpreting a theatrical production lies with the actor who expresses the theatrical idea through the creative will of the director and gives it individual form. In cinema, because of its unusually high technological component — the quintessence of the machine and electricity — and because of the surprising significance of montage, the actor takes second place. In view of the fact that cinema must be based on a purely external (i.e. visual) artistic influence on the public the cinema artiste must learn to create the required impression not just by acting with the face but by acting with the whole body; by an expressiveness of lines.

– Kuleshov, Lev. “The Art of Cinema” [1918]. In The Film Factory: Russian and Soviet Cinema in Documents, edited by Richard Taylor, and Ian Christie. London; New York: Routledge, 1994: 46.