From the late 1930s to the mid-1950s, five big movie studios--Paramount, Warner Bros., Twentieth Century-Fox, Metro-Goldwyn-Mayer (MGM), and RKO-dominated Hollywood's film industry. This "big studio system" operated primarily as a series of assembly-line production factories. Ideally, each churned out fifty-two movies a year, enough to supply showcase theaters across the country with a new lineup each week-with profit being the overriding goal. ...