This definitive book provides a complete record of the Julius Hagen's career in the British film industry from 1913, and his subsequent Rise and Fall at Twickenham Film Studios, from 1927 to 1938. This book contains a complete and extensively detailed filmography of the 115 films Hagen made mostly at Twickenham Film Studios between 1927 and 1938, plus the one film he co-produced in 1937, including contemporary reviews of these films as published at the time by trade journals and movie fan magazines. Details, recently rediscovered, of the British, American and Continental films that Hagen's Twickenham Film Distributors released in the United Kingdom, are also included. Uniquely, most of this detailed information has never been published in book form.