Editing United Artists (section)

===Society of Independent Motion Picture Producers (1940s and 1950s)===
In 1941, Pickford, Chaplin, Disney, [[Orson Welles]], Goldwyn, Selznick, Alexander Korda, and Wanger—many of whom were members of United Artists—formed the Society of Independent Motion Picture Producers (SIMPP). Later members included [[Hunt Stromberg]], [[William Cagney]], [[Sol Lesser]], and [[Hal Roach]].

The Society aimed to advance the interests of independent producers in an industry controlled by the studio system. SIMPP fought to end what were considered to be anti-competitive practices by the seven major film studios—Loew's (MGM), [[Columbia Pictures]], [[Paramount Pictures]], [[Universal Pictures]], RKO Radio Pictures, 20th Century-Fox, and [[Warner Bros.|Warner Bros./First National]]—that controlled the production, distribution, and exhibition of motion pictures.

In 1942, SIMPP filed an antitrust suit against Paramount's [[United Paramount Theaters|United Detroit Theatres]]. The complaint accused Paramount of conspiracy to control first-and subsequent-run theaters in Detroit. This was the first antitrust suit brought by producers against exhibitors that alleged monopoly and restraint of trade. In 1948, the [[United States Supreme Court|U.S. Supreme Court]] [[Paramount Decision]] ordered the major Hollywood [[movie studio]]s to sell their theater chains and to end certain anti-competitive practices. This court ruling ended the studio system.

By 1958, SIMPP had achieved many of the goals that led to its creation, and the group ceased operations.