 This film also has some historical importance as the first superhero film set in Hong Kong, the first film promotion in Hong Kong using a hot air balloon, and the first Shaw Brothers production using a storyboard.In 2004, the film was released on DVD in Japan and Hong Kong.Roger Ebert, on his 7 March 1976 review for the Chicago Sun-Times, gave the film two and a half stars out of four, concluding "The movie even looks good