Major Update: 'Assassination Classroom' The Movie Returns with New Story Content and Theme Song

The highly anticipated theatrical return of the beloved franchise, Assassination Classroom The Movie: Our Time (Gekijōban Ansatsu Kyōshitsu Minna no Jikan), is officially scheduled for a March 20, 2026, debut across Japanese cinemas. The creative team recently unveiled a spectacular new main poster that perfectly captures Class 3-E alongside their iconic teacher, Koro-sensei.

More significantly, the first full main trailer has been released, offering fans an exhilarating glimpse into the film's heightened animation quality and narrative depth. Producers confirm that this cinematic event is not merely a recap. It meticulously adapts crucial story arcs and character moments that were necessarily omitted from the original television broadcast due to time constraints, effectively serving as a true continuation for dedicated followers celebrating the series' anniversary.

Production Details and Theme Song

Adding an extra layer of excitement is the reveal of the theme song, a driving pop-rock track titled “Teacher,” masterfully performed by the talented Sora Tomonari. The trailer also confirmed the return of the core voice ensemble, bolstered by new additions to the cast, including Kikuko Inoue and Mai Fuchigami.

Animation powerhouse Lerche is back at the helm. The film is directed by Masaki Kitamura, with Makoto Uezu handling the scripting. The production promises to honor Aya Higami’s modernized character designs while preserving the manga’s inimitable spirit.

Early assessments of the preview highlight an impressive equilibrium between explosive action sequences and those deeply affecting, heartfelt school-life scenes that define the series' enduring appeal. As the March 2026 date approaches, fan excitement is high globally, eagerly awaiting international distribution announcements for this essential expansion of the Koro-sensei saga.