Let's go to the movies - movie film screenshot

Short film about the early history of motion pictures and the technical aspects of film manufacture.
MP4068 U.S. Copyright Office
Copyright: RKO Radio Pictures, Inc.; 31Dec48; MP4068.
Appears: Mary Pickford, Charlie Chaplin, President Roosevelt, Al Jolson, John Barrymore.
Sources used: Copyright Catalog, motion pictures, 1940-1949; National Union Catalog, motion pictures and filmstrips, 1953-1957.