The film is officially titled JoJo’s Bizarre Adventure: Diamond wa Kudakenai Dai-Ichi-Shō (JoJo’s Bizarre Adventure: Diamond Is Unbreakable Chapter I).
After a domain name was registered to Warner Brothers, it seems that it’s finally official, as we are really having a live-action Jojo’s Bizarre Adventure movie!
However, unlike the rumors have claimed, it won’t be adapting Part 3, Stardust Crusaders, but part 4, which is Diamond is Unbreakable.
It aims to cover the entire fourth part, which follows the adventures of Jousuke, with Jotaro acting as his mentor.