BACK PROJECTION – TV – Film
Formerly used in film to create the look of a location by projecting a moving image of the location on a screen behind the actors who are in a specially set up studio. For example often used in interior car sequences to create the effect of the street receding through the rear window as the car moves along. Common in Hollywood films up to the fifties then the introduction of light weight cameras made it possible and more realistic to film on location. The technique is now used effectively in digital form. In TV it is called CHROMAKEY and in film Green Screen. See BLUE/GREEN SCREEN POSTPRODUCTION.
