The official website for Warner Bros. Japan and Level 5's Ni no Kuni anime film began streaming a clip from the film on Thursday. The clip shows Yū and Haru fighting as Haru leads an attack to kill the princess Asha and save Kotona's life.

The film will open in Japan on Friday, August 23.

The film stars:

Kento Yamazaki as Yū

Mackenyu as Haru

Mei Nagano as Asha/Kotona

Mamoru Miyano as Yoki

Kenjiro Tsuda as Gabaras

Maaya Sakamoto as Saki / Velsa

Kouichi Yamadera as Balton

Yuuki Kaji as Danpa

Masatō Ibu as King Flander

Tsuyoshi Muro as Ojii-san

Serishun and Haruka Minase will join the film's cast as the winners of the film's voice actor audition. The film will be the pair's voice acting debut.

The film will feature an original story in which through a certain incident, the three friends Yū, Haru, and Kotona are able to travel back and forth between reality and "another world" Ni no Kuni. When the life of the Kotona in both worlds is simultaneously put in danger, the three friends must make "the ultimate choice."

Yoshiyuki Momose (The Legend of the Galactic Heroes character designer, Only Yesterday and Pom Poko storyboarder) is returning from the game series to direct the film, and Hayao Miyazaki's longtime collaborator Joe Hisaishi (Nausicaa of the Valley of the Wind, Princess Mononoke, Spirited Away) is returning to compose the music. Level 5 CEO Akihiro Hino is overseeing the film and is writing the script, and he is also credited with the original work. Hiroyoshi Koiwai (live-action Gintama, Rurouni Kenshin) is the executive producer. OLM (Pokemon, Inazuma Eleven franchises) is animating the film. Warner Bros. Japan is the distributor. Keina Suda is performing the film's theme song "MOIL."

Level 5 debuted the fantasy role-playing game Ni no Kuni: Wrath of the White Witch for the PlayStation 3 in Japan in 2011, after a Ni no Kuni: Shikkoku no Madōshi game for Nintendo DS in 2010 and a game for Japanese phones. Namco Bandai Games then released Ni no Kuni: Wrath of the White Witch outside Japan in 2013. The RPG featured cut scenes from Studio Ghibli. Bandai Namco Entertainment will release a remastered version of Ni no Kuni: Wrath of the White Witch on the PlayStation 4 and PC on September 20, and will release the original version on the Switch on September 20.

Level 5 released the Ni No Kuni II: Revenant Kingdom PlayStation 4 and PC game in March 2018.

Sources: Ni no Kuni anime's website, Comic Natalie