the stroboscopic effect
Movies are based on a visual illusion: flashes of images are translated into a continuous movement by the brain.

Mirror - a way to generate the stroboscopic effect.

Zoetrope for a "long" film of 24 frames.
videos: Wikipedia: "Zoopraxiscope and "Phenakistiskop"
Resources:
Museum's archive
Voice actors: H.Gülland / K. Albrecht