The official website for the upcoming live-action film adaptation of Yusei Matsui's Ansatsu Kyoushitsu/Assassination Classroom manga announced today on October 14 that it will be released in Japan on March 21, 2015. The shooting was started on August 31, and according to the film's official Twitter account, most of the cast for the students in class 3-E have already finished shooting their parts by October 10. The film, however, still has a lot of post-production works to add the CGI-created Korosensei.
The sets of Kunugigaoka Junior High School
Celebrating 30,000 followers with the cast of the 3-E students
(C) 2015 Yusei Matsui/Shueisha
(C) 2015 Yusei Matsui/Shueisha, Movie "Ansatsu Kyoushitsu" Production Committee