Silent Studio Directory - 53 - California Motion Picture Manufacturing Co. - US - 1910- 1913 - production company founded in Long Beach, California by a group of entrepreneurs with T. L. Howland as president and V. L. Duhem as general manager; in April 1913, sold to the Horkheimer brothers who changed the name to Balboa Amusement Producing Co. California Producers Corp. - US - 1921 - production company located at 7100 Santa Monica Blvd. Hollywood, California with George Newberger as president, S. L. Warner as V. P. and J. L. Warner as general manager; produced two reel comedies for Educational Film Corp. Callahan Film Co. - US - 1921 - production company located at the Curtiss Airport Grounds in Atlantic City, New Jersey; produced two reel comedies released under the trade name of Jimmy Callahan Comedies and distributed through Film Market, Inc. Campbell Comedies - US - 1921- 1922 - trade name used by Campbell Comedy Corp. Campbell Comedy Corp. - US - 1921-1922 - production company formed by William S. Campbell, who was production manager for C. L. Chester Productions when the fire burned down his studio; offices were located at 4534 Sunset Blvd., Hollywood, California; used Fine Arts studio to produce two reel animal comedies for Educational Film Corp. Cameo Comedies - US - 1915 - trade name used by Colonial Motion Picture Corp. Cameo Film Co., Inc. - US - 1915 - production company located at 1400 Broadway, New York. Camus Productions - US - 1922 - production company. Canadian Bioscope Co, Ltd. - CANADA - 1912-1915 - production company formed December 1912 at 108 Pleasant St. Halifax, Nova Scotia by Capt. H. H. B. Holland; offices located at 1209 Candler Building, 220 West 42nd Street, New York; company closed February 1915 due to WWI. Canadian Photoplays, Ltd - CANADA - 1919-1921 - production company formed by Ernest Shipman with offices in Calgary and Alberta. [see Ernest Shipman and Associates] Canadian Releasing Corporation Ltd. - CANADA - 1922 - distribution company located at 12 Mayor Street in Montreal with J. P. O'Loghlin as general