During the so-called Golden Age of Hollywood, which lasted from the end of the silent era in American cinema in the late 1920s to the late 1950s, thousands of movies were issued from the Hollywood studios. The start of the Golden Age was arguably when The Jazz Singer was released in 1927, ending the silent era and increasing box-office profits for films as sound was introduced to feature films. Most Hollywood pictures adhered closely to a formula - Western, slapstick comedy, musical, animated cartoon, biopic (biographical picture) - and the same creative teams often worked on films made by the same studio. For example, Cedric Gibbons and Herbert Stothart always worked on MGM films, Alfred Newman worked at 20th Century Fox for twenty years, Cecil B. De Mille's films were almost all made at Paramount, and director Henry King's films were mostly made for 20th Century Fox.
At the same time, one could usually guess which studio made which film, largely because of the actors who appeared in it; MGM, for example, claimed it had contracted "more stars than there are in heaven." Each studio had its own style and characteristic touches which made it possible to know this — a trait that does not exist today. Yet each movie was a little different, and, unlike the craftsmen who made cars, many of the people who made movies were artists. For example, To Have and Have Not (1944) is famous not only for the first pairing of actors Humphrey Bogart (1899–1957) and Lauren Bacall (1924–) but also for being written by two future winners of the Nobel Prize in Literature: Ernest Hemingway (1899–1961), the author of the novel on which the script was nominally based, and William Faulkner (1897–1962), who worked on the screen adaptation.
After The Jazz Singer was released in 1927, Warner Bros. gained huge success and was able to acquire their own string of movie theaters, after purchasing Stanley Theaters and First National Productions in 1928. MGM had also owned the Loews string of theaters since forming in 1924, and the Fox Film Corporation owned the Fox Theatre strings as well. Also, RKO (a 1928 merger between Keith-Orpheum Theaters and the Radio Corporation of America) responded to the Western Electric/ERPI monopoly over sound in films , and developed their own method, known as Photophone, to put sound in films. Paramount, who already acquired Balaban and Katz in 1926, would answer to the success of Warner Bros. and RKO, and buy a number of theaters in the late 1920s as well, and would hold a monopoly on theaters in Detroit, Michigan. By the 1930s, all of America's theaters were owned by the Big Five studios - MGM, Paramount Pictures, RKO, Warner Bros., and 20th Century Fox.
Movie-making was still a business however, and motion picture companies made money by operating under the studio system. The major studios kept thousands of people on salary — actors, producers, directors, writers, stunt men, craftspersons, and technicians. They owned or leased Movie Ranches in rural Southern California for location shooting of westerns and other large scale genre films. And they owned hundreds of theaters in cities and towns across the nation, theaters that showed their films and that were always in need of fresh material.
