b'In 1962, NSS produced their first computerized inventory list. This changed how everything was handled and in 1964 all the changes were presented at a national convention unveiling the New N.S.S.With printing under control and a new computerized inventory system, NSS mushroomed into a giant. But, while NSS looked unstoppable (and until the late 1970s they were), little did they know that a demon-seed to the company had been planted in Kansas City, Missouri in 1963 that would cause the fall of the giant.Stanley Durwood, who had returned from World War II as a navigator, came home to help his ailing father who had purchased the Loews Midland theater in downtown Kansas City in 1920 (shown in postcard below) and had built it to a 40-theater chain.In 1960, Stanleys father died and Stanley took over the business. He noticed the large downtown theaters had trouble filling the theater and the balconies were always closed. This made them too costly to operate so he tried to figure a way to do something different with the balconies.While worrying with this situation he was presented with a different problem. They had a new theater being built in the suburbs with dimensions that wouldnt allow a full size screen. So, Stanley divided the building and on July 12, 1963, the first designed twin multi-plex theater was born. In 1966, he built a 4-plex and in 1969, a 6-plex. During this time, Stanley changed the name of their company from Durwood Theaters to American Multi-Cinema which later became AMC Entertainment.'