A monster movie which is South Korea's biggest-budget film has become a sell-out at home before its release next month in the United States, the distributor said Monday. "D-War," a graphics-rich science fiction blockbuster, has sold 5.7 million tickets since its release on August 1, distributor ShowBox said. At 30 million dollars the movie is the most expensive film ever made in South Korea. It is to be shown on 1,700 screens in the United States on September 14, the widest US release for a Korean film. AFP reports.