foundations
Stop motion
Definition
A filmmaking technique in which a physical subject is positioned in front of a camera, photographed one frame at a time, and repositioned incrementally between each exposure. When played back at a standard frame rate, persistence of vision creates the illusion of continuous movement. Stop motion is the capture method: it describes how a film is shot — frame-by-frame manipulation of a physical subject — not what appears in front of the lens. Clay figures, articulated puppets, found objects, paper cutouts, brick models and live actors are all sub-types of stop motion differentiated by their subject or surface material, not by any difference in shooting method.
Stop motion operates on the same perceptual mechanism as all filmmaking: the brain integrates a rapid sequence of still images into apparent motion. The distinguishing feature is that each frame is separately composed and captured — the animator moves the subject a small amount, the camera fires a single exposure, and the cycle repeats. Because the subject is stationary at the moment of exposure, motion blur is not generated in-camera between frames; any blur must be added in post-production or created by deliberate smearing of a subject immediately before capture.
The scale of labour involved is rarely visible on screen. A single minute of footage at 24 fps, shot on twos, requires 720 individual poses; each pose must advance a performance while preserving all prior continuity of lighting, set dressing and subject contact. At professional studios, each animator typically produces around two to three seconds of usable footage per day (Smithsonian Magazine, 2025).
Stop motion predates the modern film industry. Early trick films by J. Stuart Blackton used single-frame exposure for substitution effects as early as 1906. Wladyslaw Starewicz animated insect carcasses into narrative films in Russia before 1914. Willis O'Brien pioneered creature animation in Hollywood and trained Ray Harryhausen, whose effects for Jason and the Argonauts (1963) defined the art form for a generation. The contemporary feature form — full puppet or clay characters as primary performers — was pioneered at Aardman Animations and institutionalised for the 21st century by LAIKA with Coraline (2009).