The filming of the film invested 9.5 million US dollars, of which the giant crater built by the crew cost 1 million.
The filming of "Thunderak Valley" officially started on July 4, 1966. The film was mainly filmed in Japan . Himeji Castle inserved as Tanaka's ninja training camp. His private transportation hub was taken in Tokyo. At the Nakano Shimbashi Station of the subway, the location of Osato Company was from the New Otani Hotel in Tokyo, and the hotel park was also used to shoot scenes of ninja training. In addition, the crew also filmed fighting scenes in the fishing village and port in Kagoshima and Kobe Port respectively.
The "Little Nell" ultralight helicopter that Bond piloted in the film was heard by art director Ken Adam in a radio interview. Ken Adam then talked with the aircraft manufacturer and Royal Air Force Lieutenant Colonel Ken Waugh. Liss got in touch and asked him to fly the plane and perform most of the stunts in the film. The aerial battle between "Little Nell" and multiple gunship helicopters is difficult to photograph. Wallis flew 85 sorties for a total of 5 hours, and Wallis nearly collided with the camera many times. While shooting from above the helicopter, photographer's leg was severed by a propeller, and the filming was stopped. Since the Japanese government did not allow shooting of the airplane explosion scene over the national park, the crew had to go to Torremolinos, Spain, which has similar terrain to Japancomplete the shooting.
The set of the Devil’s party launch base was built at the Pinewood Studios at a total cost of up to 1 million US dollars, including the heliport and the monorail. The whole set is 45 meters high, and the locals can see it from 5 kilometers away
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