Official Trailer & Poster for "Gekijōban Ansatsu Kyōshitsu Minna no Jikan" Unveiled! Theme Song is "Teacher" Written by Sora Tomonari

The official trailer and poster visual for "Gekijōban Ansatsu Kyōshitsu Minna no Jikan," which will be released on March 20, 2026, have been unveiled.

This film is produced as the culmination of a project commemorating the 10th anniversary of the conclusion of both the anime and original manga serialization of "Assassination Classroom" by Yusei Matsui. It depicts previously unfilmed episodes from the original work through completely new production. The film is directed by Masaki Kitamura and written by Makoto Uezu.

The trailer shows the days spent together by Class 3-E and Koro-Sensei as graduation approaches, featuring scenes such as a lesson where students learn to swim from a mermaid, an explosion of art, the Revenge Master Plan, Valentine's Day events, and Koro-Sensei's "Secret After Five."

The poster visual unveiled simultaneously depicts the moment when students chase after memorable photographs scattered throughout the classroom by Koro-Sensei, each with their own expression, accompanied by the tagline "With 10 Years' Worth of Love."

The theme song has been decided as "Teacher," an original composition by singer-songwriter Sora Tomonari. Tomonari commented on the song, saying, "I wrote this song as a way to repay Koro-Sensei."

Additionally, the second edition of Mubichike Cards will be sold at theaters nationwide starting December 19. As a bonus, illustration cards (4 types in total) depicting scenes from Class 3-E's youth will be included. Furthermore, the release of an album titled "Anime 'Assassination Classroom' 10th anniversary Music Collection," which covers songs from the TV anime series and theatrical films, has been announced.