b"While contracts and exchanges were all under the subsidiary company Advertising Accessories, Inc., this immediately gave National Screen an additional 28 outlets that were fully staffed, each with hundreds of thousands of posters already in stock and set up in major cities across the country. In addition, it eliminated some of the studios legal battles. These new exchanges were located in: California, Colorado, Connecticut, Illinois, Indiana, Iowa, Louisiana, Michigan, Minnesota, Missouri, Nebraska, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Texas, and Washington.Universal and Warner Bros. signed a non-exclusive contract while Columbia, Loew's, Fox, United Artists, Universal and Warner Studios utilized the services of regional exhibitor exchanges, rather than NSS, to distribute the standard accessories that they produced for their films. Due to contractual obligations, Advertising Accessories merged with NSS on July 18, 1941.This merger was announced in The Film Daily dated July 25, 1941.Timing could not have been better for NSS. As the US involvement in World War II became larger, manpower rapidly became an additional major problem for the studios almost forcing them to National Screen. Over the next few years, the remainder of the eight major studios at the time signed contracts giving exclusive rights to NSS to manufacture and distribute their accessories. Universal signed their contract in 1944, Columbia in 1945, United Artists in 1946 and 20th Century Fox in 1947. Warner Brothers, who had signed a non-exclusive contract earlier, gave exclusive rights in 1946. By 1947, EVERY major film studio in the US had signed exclusive contracts with NSS.The move to exclusive contracts with the studios immediately set up a barrage of lawsuits by the independent poster exchanges. The first lawsuit, Lawlor v. National Screen Service Corp. was filed in 1942 and set off a chain of lawsuits that lasted until 1960. In 1943, NSS tried to ease the situation by creating sub-licensing agreements for a 3- year period that was later extended for another 5 years ending April 30, 1951. While this appeased some, other exchanges continued filing lawsuits trying to break the exclusivity. NSS TAKES CONTROL1957-1980The 1950s brought chaos and diversity to the film industry. To fight the television craze, studios experimented with a wide variety of ideas such as 3D, wide screen films, the oddities of William Castle and much more. Drive-ins were on the rise, so the film industry turned to a younger audience with rock and roll and beach movies."