The domestic box-office for these films was large, which led to Kadokawa putting US$16 million into the film "Virus", making it the most expensive film in Japanese history on its release. The film was shot on location in Tokyo and various locations throughout Canada, including Kleinburg, Ottawa, and Halifax. The production was heavily supported by the Chilean Navy, who lent the submarine "Simpson" (SS-21) for use as a filming location. Submarine interiors were filmed on-board HMCS "Okanagan" (S74), an "Oberon"-class vessel that served in the Canadian Forces.