Ultimately, this issue of the studios' unfair trade practices would be the reason behind all the major movie studios being sued in 1938 by the [[United States Department of Justice|U.S. Department of Justice]]. Coincidentally, the [[Society of Independent Motion Picture Producers]] a group led by [[Mary Pickford]], [[Samuel Goldwyn]], [[Walter Wanger]], and others filed a lawsuit against Paramount Detroit Theaters in 1942, the first major lawsuit of producers against exhibitors.