Dziga Vertov (1896–1954) was a Soviet filmmaker and theorist who pioneered the documentary form through his concept of "Kino-Pravda" (Cinema Truth), a method of capturing unscripted reality without actors or sets. His most celebrated work, *Man with a Movie Camera* (1929), demonstrated his radical approach by constructing a portrait of Soviet urban life entirely from filmed footage, arranged through montage to reveal patterns of modern existence. Vertov rejected narrative cinema as artificial and developed techniques of rapid cutting, multiple exposures, and varied camera speeds that influenced documentary and experimental filmmaking across generations. His work established foundational principles for cinema vérité and direct cinema movements that emerged decades later.