Demon Slayer: Infinity Castle lands on Hulu on 28 September
Hulu has dated Demon Slayer: Infinity Castle for 28 September, taking the first film of the trilogy from cinemas to streaming.
The first film in Demon Slayer's Infinity Castle trilogy now has a streaming date. Hulu issued a date announcement on 21 September confirming that Demon Slayer: Kimetsu no Yaiba The Movie: Infinity Castle arrives on the service on 28 September, roughly a year after the film began its run in cinemas.
What Hulu has confirmed
The announcement is short and specific: the film starts streaming on Hulu on 28 September. Everything else in the release is context. Hulu describes it as the first chapter of the trilogy that closes out what it calls the world's number one anime franchise, and points subscribers at the four television arcs already sitting on the service, Mugen Train, Entertainment District, Swordsmith Village and Hashira Training, each in subtitled and dubbed form. That is the full catch-up route in one place, which is the point of putting the film next to the series it finishes.
What the film covers
The Infinity Castle film picks up where the Hashira Training arc ends. After losing his family and watching his younger sister turned into a demon, Tanjiro Kamado joins the Demon Slayer Corps to avenge them. In this chapter the leader of the Twelve Kizuki captures Lady Tamayo after Ubuyashiki's attempt to stop him fails, dragging Tanjiro, Zenitsu, Inosuke and the Hashira into the demons' own stronghold, the Infinity Castle, for a fight against their strongest opponents yet.
A trilogy, not a single film
Infinity Castle is the first of three films covering the final stretch of the manga, which is why the theatrical run has been treated as an event rather than a release. Hulu's announcement leans on that framing, calling the film a global theatrical phenomenon that broke box office records for anime film worldwide. Those are the distributor's words about its own release, and the numbers behind them are still best read through the Japanese box office charts rather than a streaming service's press release.
Our opinion
The interesting part of this announcement is the shape of it. A two-sentence date drop, no trailer premiere, no cast interviews, no event: the film's cinema run already did the marketing, and streaming is where the audience that waited for the home release finally gets served. That is a healthy sign for anime distribution. A decade ago the same film would have arrived on a physical release first and streaming months later, if at all.
It also quietly puts Hulu in a stronger position than it usually holds in anime. The service has the four television arcs and now the first film, so the complete on-ramp lives in one app, while Crunchyroll's simulcast line-up keeps the weekly habit. The catch is fragmentation: anyone who wanted the whole Demon Slayer run in one place still cannot have it, and the trilogy's second and third films will arrive on their own schedule whenever the theatrical window closes on each. Subscribers should expect to keep paying attention to the calendar rather than the library.