I really liked this film, despite its length (I often struggle with long films, and Kokuho is just under 3 hours). Really recommend seeing it when it's released (not sure when it comes to the UK).
Oscar entry ‘Kokuho’ breaks 22-year-old Japan box-office record
https://www.japantimes.co.jp/culture/2025/11/25/film/kokuho-film-break-record/