Infinity Castle is the first of a trilogy closing out Demon Slayer, and Ufotable pushes the series' visual style to its highest level. Directed by Haruo Sotozaki, it premiered in Japan on July 18, 2025 and grossed $820.4 million, becoming the highest-grossing Japanese film ever.
Rotten Tomatoes lists 98% positive from 62 reviews with an 8/10 average.
Quick Facts
- Studio: Ufotable; directed by Haruo Sotozaki; music by Yuki Kajiura and Go Shiina
- Release: July 18, 2025 in Japan, international release from August 2025
- Source: First of a planned trilogy adapting the manga's Infinity Castle arc
- Reception: Rotten Tomatoes 98% (62 reviews, 8/10 average)
- Sales: $820.4 million worldwide; ¥5.52 billion ($37.42 million) opening weekend in Japan
Story
The film follows the Demon Slayer Corps' assault on Muzan's dimensional stronghold after he retreats there. Key battles include Shinobu against Doma, Upper Rank Two, Zenitsu against Kaigaku, Upper Rank Six and a former ally, and the central conflict between Tanjiro, Giyu and Upper Rank Three Akaza.
The confrontation with Akaza comes with a flashback revealing his tragic transformation from a mortal criminal named Hakuji.
Behind The Scenes
Ufotable began production in early 2022 under director Haruo Sotozaki. Yuki Kajiura and Go Shiina returned to compose, with Aimer and LiSA performing the theme songs.
The film opened with ¥5.52 billion ($37.42 million) in its first weekend in Japan, recorded as the biggest opening weekend in Japanese cinema history, and reached $820.4 million worldwide, the highest for a Japanese film and for an R-rated animated film.
Experience
Visuals and animation
Rotten Tomatoes' consensus praises the big screen for Demon Slayer's most polished presentation yet. Ufotable combines hand-drawn animation and effects to stage battles in the ever-shifting space of the Infinity Castle.
Pacing
Pacing drew comment: Richard Eisenbeis (Anime News Network) said the repetitive structure and reliance on flashbacks hinder the pacing, while Phuong Le (The Guardian) called it a spectacular treat but also said flashbacks sometimes slow the film.
Music
Yuki Kajiura and Go Shiina, the series' familiar composers, return with the score while Aimer and LiSA perform theme songs, maintaining Demon Slayer's musical identity.
Strengths
- The series' most polished visuals
- Large-scale battles in the Infinity Castle setting
- The Akaza flashback adds tragic depth
- Record-setting commercial success
Weaknesses
- Repetitive structure and flashbacks slow the pacing
- The first of a trilogy, without a full conclusion
- You need to watch the prior anime and arcs first
What Critics Say
Rotten Tomatoes lists 98% from 62 reviews, the consensus praising Demon Slayer's most polished big-screen presentation. Mixed opinion centered on pacing: heavy flashbacks and repetitive structure per Anime News Network, while The Guardian still called it a spectacular treat.
Commercially, the film earned ¥5.52 billion in its opening weekend in Japan and $820.4 million worldwide, becoming the highest-grossing Japanese film and the highest-grossing R-rated animated film.
Who Is It For
For those who have watched Demon Slayer's seasons and want the climax on the big screen. Fans of beautiful animation and large-scale battles will be satisfied. Newcomers should watch the anime first.
OtaHub Score
Verdict
Infinity Castle is a big win visually and commercially, though its pacing is uneven because of the flashbacks. OtaHub scores it 9.9/10.
FAQ
How many parts is Infinity Castle?
The first of a planned trilogy.
When was it released?
July 18, 2025 in Japan, internationally from August 2025.
What was the box office?
$820.4 million worldwide.