The function of motion picture cameras and projectors is explained in detail.
United States USA Date:1939 Duration:10 min 42 sec Sound:Yes
Working of motion pictures is explained. Close up of film projector running. A montage shows varied film events, including dancers in Hawaii, a smoking volcano, biplane flying over the pyramids in Egypt, the Hindenburg disaster, World War I era tanks driving over hills, FDR at a ball game, iron smelting, a woman talking to a grocery man, and zoom in on AC generators at Hoover dam. A family watches projection of a home movie. The home movie shows a boy playing with his dog. Devices demonstrating optical illusion include a bird in the cage illusion. Demonstration of a Mutoscope-Kinetoscope flip-card projector. Thomas Edison shown in a flip card moving image. A cartoon animator at work, showing his character move as he flips pages. Parts of a movie projector are shown in detail, including lense, shutter, and exciter lamp. A cameraman operating a 35mm motion picture camera. Film being perforated during manufacture. Production of an optical sound track is explained, showing the narrator at his microphone and sound mixer using sound board and loading audio mag recorders. Animated diagrams show the functioning of a photoelectric cell in producing a variable intensity sound track. Wide shot of Hollywood movie set and an action stunt scene being photographed. Lead actor might be James Cagney. Hollywood premiere of movie showing flood lights, theater marquee, and people buying tickets at the box office. Audience reacting to fight scene in movie and then applauding. Demonstration of the creation of 16mm film shows size comparison between 35mm and 16mm motion picture film. Montage shows many film projectors running at the same time.
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