Demon Slayer fans in Japan are getting a major surprise. A brand-new trailer for Infinity Castle will play exclusively in theaters after the 4K revival of Mugen Train, starting May 9. This sneak peek gives fans their first look at the anime’s intense final arc.
Infinity Castle Trailer Debuts in Theaters
A Special Treat for Moviegoers
At a fan event in Yokohama, producers revealed the surprise. Audiences attending the 4K re-release of Mugen Train will get to watch a theatrical-only Infinity Castle trailer. This trailer will not be available online or outside cinemas for now.
Introducing the Final Arc
Infinity Castle begins the final trilogy of the Demon Slayer series. In this arc, Tanjiro and his allies enter Muzan Kibutsuji’s demonic fortress. There, they prepare for a final showdown that will determine the fate of humanity.
Global Release Timeline
Japan Leads the Launch
The movie hits Japanese theaters on July 18, 2025. Following that, international releases begin in August 2025. Audiences in the U.S. and Canada can watch it in cinemas starting September 12, 2025. The film will screen in both Japanese with subtitles and an English dub. It will also release in IMAX and premium formats for an enhanced viewing experience.
Mugen Train Returns in 4K
Ahead of the new movie, the 4K version of Mugen Train returns to theaters. It arrives in the U.S., Canada, and select regions on May 14, 2025. This gives fans a chance to relive the arc that launched the franchise into global stardom.
Key Talent Behind the Film
Trusted Team Returns
Director Haruo Sotozaki once again leads the project at Ufotable. Akira Matsushima handles character design, while Yuki Kajiura and Go Shiina return to compose the soundtrack. Their combined work promises another stunning cinematic experience.
What Happens in Infinity Castle?
The Final Battle Begins
Tanjiro has fought side by side with powerful warriors called the Hashira. After intense training, the Demon Slayer Corps prepares to confront Muzan. Suddenly, Muzan strikes the Ubuyashiki Mansion. As a result, Tanjiro and the Hashira fall into the Infinity Castle, the demon lord’s twisted stronghold.
Now, they must fight for survival inside this surreal and deadly battleground. Every warrior faces a personal trial, and every battle brings them closer to the end. The fate of their world hangs in the balance.
