The highly anticipated Chainsaw Man – The Movie: Reze Arc has officially streamed its opening movie, prominently featuring the theme song “IRIS OUT” performed by popular Japanese singer-songwriter Kenshi Yonezu. This release provides fans with an early glimpse into the film’s aesthetic and musical direction ahead of its theatrical debut.
Kenshi Yonezu Returns to the Chainsaw Man Universe
Kenshi Yonezu, known for his smash-hit “Kick Back” which served as the opening theme for the first season of the Chainsaw Man anime series, makes a significant return to the franchise with “IRIS OUT” for the Reze Arc movie. The new track was digitally released on September 15, 2025, and later became available physically on September 24, 2025, as a double A-side maxi single alongside the film’s ending theme. Yonezu also provided the cover art for “IRIS OUT,” which features the character Reze.
“IRIS OUT” Sets the Tone for the Reze Arc
The streamed opening movie showcases the visual style of MAPPA, the animation studio behind both the anime series and the film, complemented by Yonezu’s distinctive sound. “IRIS OUT” is designed to immerse viewers in the intense and often melancholic world of Denji’s continued adventures, especially as he navigates the complexities introduced by Reze.
The Chainsaw Man – The Movie: Reze Arc Release Schedule
The film, which serves as a direct sequel to the first season of the anime, first premiered in Japanese cinemas on September 19, 2025. International audiences can anticipate a staggered release, with select Asian markets beginning screenings on September 24. In the United States, the movie’s release date was moved up to October 24, 2025, from its initial October 29 schedule. Other Western territories, including France, will see the film on October 22, while the UK, Germany, and Belgium are set for an October 29 release.
Expanding the Story: The Reze Arc
The Reze Arc delves into Denji’s life as he encounters Reze, a mysterious and charming girl who works at a local café. Their burgeoning relationship quickly transforms Denji’s mundane existence, but Reze harbors a dangerous secret and ulterior motives, leading to an explosive “love triangle” that promises high-stakes action and emotional depth. The film is directed by Tatsuya Yoshihara, who previously served as action director for the anime series.
Collaborative Ending Theme: “JANE DOE”
In addition to Yonezu’s opening theme, the film also features an ending theme titled “JANE DOE,” a collaboration between Kenshi Yonezu and Japanese-American singer Hikaru Utada. This collaboration further elevates the film’s musical landscape, bringing together two of Japan’s most celebrated artists. “JANE DOE” was digitally released on September 22, 2025, and also included in the physical single release on September 24.
Fans can catch up on the first season of Chainsaw Man on Crunchyroll, which also streamed two feature-length recap films, Chainsaw Man – The Compilation, in September to prepare viewers for the cinematic continuation of Denji’s journey. The manga by Tatsuki Fujimoto, which the film adapts, is handled by Viz Media outside of Japan.
