Major film studio adopted its name. That same year, William Fox relocated his Fox Film Corporation from Fort Lee, New Jersey to Hollywood and began expanding. In 1918, four brothers—Harry, Albert, Sam, and Jack Warner—founded the first Warner Brothers Studio on Sunset Boulevard in Hollywood. On April 4, 1923, the Warner Brothers incorporated their fledgling movie company as "Warner Brothers Pictures, Inc." The Motion Picture Theatre Owners of America and the Independent Producers' Association declared war in 1925 on what they termed a common enemy — the "film trust" of Metro-Goldwyn-Mayer, Paramount, and First National, which they claimed dominated the industry by not
Jack L. Warner the film's success at the box office, Harry Warner remained concerned about the economic threat presented by the Edison Trust. He subsequently broke with Laemmle and sent Jack to establish a film exchange in San Francisco, while Sam did the same in Los Angeles. The brothers were soon poised to exploit the expanding California movie market. In 1917, Jack was sent to Los Angeles to open another film exchange company. Their first opportunity to produce a major film came in 1918, when they purchased the film rights for "My Four Years in Germany", a bestselling novel that condemned German wartime