: The narrative spans the Taisho and Showa eras, depicting Japan’s rapid modernization, the devastating 1923 earthquake, and the economic depression that fueled the rise of militarism.
: Through the character of Italian designer Giovanni Caproni, Miyazaki poses a philosophical question: "Would you prefer a world with or without pyramids?". This suggests that while grand human achievements may be "stained with suffering," the drive to create them is a fundamental part of the human spirit.
The central theme of the film is the paradox of the "cursed dream". Jiro Horikoshi, a fictionalized version of the real-life engineer who designed the Mitsubishi A6M Zero fighter, is driven by a pure, aesthetic passion for creating "beautiful airplanes". However, this pursuit is inextricably linked to the , as his masterpieces are ultimately used as tools of mass destruction.