This film is the fourth live-action film directed by Oshii Mamoru. It not only contains a wide range of animation production skills, but also is a film composed of actual images. The actual people and objects are expressed with photographic lenses, and then the post-production is completed by animation production methods.
The production cost of the film is 600 million yen, and the production time is up to 2 years. Due to the director's passion for Polish films, he traveled from Japan to Central Europe to shoot. Not only did he mobilize the Polish cast, including the director of photography and costume design, they were all active in the Polish film industry. In addition, with the assistance of the Polish military, the various battle scenes in the film are all shot in real scene, and the Japanese GG photography technology used in the production is added.
The sound technology of the film is the first in Japan to use Dolby 6.1 channels, which means that it has six channels and one bass effect
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