Dziga Vertov

Dziga Vertov (Russian: Дзига Вертов) (born David Abelevich Kaufman (Russian: Дави́д А́белевич Ка́уфман); 2 January 1896 – died 12 February 1954), also known as Denis Kaufman, was a Soviet pioneer documentary film and newsreel director, as well as a cinema theorist. https://en.wikipedia.org/wiki/Dziga_Vertov