Films in business and industry (1947)

130 FILMS IN BUSINESS AND INDUSTRY chronization before separate sound heads which reproduce voice, music, and effects so that they can all be re-recorded on one single roll of film. After the film that combines all sounds is developed, the sound track is printed along the side of a roll of film. The picture is printed in the center of the same roll of film. After development the result is a com- bined print—the finished film product. The actual writing, photographing, recording, and assem- bly of an industrial motion picture are usually performed by one of the many nontheatrical producing organizations located throughout the United States. New York, Chicago, Detroit, and Hollywood are the centers of commercial- and educational-film activity. Producers who are located in other cities usually come to one of these centers for many of the technical facilities required for film production. Some large business firms, such as Aetna Insurance and the Caterpillar Tractor Company, make their own films and call on pro- ducers only for specialized services. The initial idea for a commercial film may originate with a producer who suggests it to a business organization and sells his services with it. This is a common method of inducing a company to sponsor its first film. Once the executives of a company understand the film method of communication, they are more apt to decide when films should be used and then select a producer to make the film. For films of a general promotional nature, there is a growing tendency to have advertising agencies supervise production, since films for such use are but one part of an over-all advertising program. The decision as to whether or not an agency should supervise production should be made in the light of the ability of the particular agency to provide constructive direction and advice. If the agency has staff members ex- perienced in film production and distribution, they may well