Fox News was the original newsreel established by movie mogul William Fox. It was eventually replaced by Fox's pioneering sound newsreel, Fox Movietone News, which began regular operations in December 1927. When Fox Films ceased production of Fox News, the extensive library of unused and outtake film was folded into the Fox Movietone News library and was used internally as stock footage by Fox Films and 20th Century Fox until the corporation ceased production of Fox Movietone News in 1963.