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2026 Doraemon Film's New Trailer Unveils sumika's Theme Song
posted on by Joanna Cayanan
The staff for the 2026 Doraemon film, Eiga Doraemon: Shin Nobita no Kaitei Kiganjō (Doraemon the Movie: New Nobita and the Castle of the Undersea Devil), started streaming a new trailer on Sunday. The video announces and previews the film's theme song "Honto" by rock band sumika.
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— 映画ドラえもん【公式】 (@doraeiga) November 30, 2025
最新予告解禁！
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ドラえもんたちが海底世界で
大冒険を繰り広げるよ！
映画の公開をおたのしみに♪
ퟐퟎퟐퟔ年ퟐ月ퟐퟕ日（金）公開
『#映画ドラえもん 新・のび太の海底鬼岩城』 pic.twitter.com/UXOkRM6zhZ
The film's staff also revealed the main visual on November 21:
The film will premiere in Japan on February 27.
Shōya Chiba will voice the character El, a soldier of the Mu Federation tasked to keep an eye on Doraemon and his friends when they arrived at the bottom of the sea; and Ryō Hirohashi will voice the Mizunaka Buggy (Underwater Buggy), the amphibious buggy car and one of Doraemon's secret gadgets.
The new and 45th 2D anime film (not counting the 3D CG Stand By Me Doraemon films) remakes the classic 1983 film Doraemon the Movie: Nobita and the Castle of the Undersea Devil.
Tetsuo Yajima (Pokémon the Movie: Secrets of the Jungle, Pokémon the Movie: The Power of Us, Pokémon XY) returns after directing episodes of the Doraemon television anime and contributing in other capacities to Doraemon the Movie: Nobita's New Great Adventure into the Underworld, Doraemon the Movie: Nobita and the Steel Troops: The New Age, and Eiga Doraemon: Nobita no Chikyū Symphony. Another veteran of the television anime, Isao Murayama (Witchy Precure!, Star Twinkle Precure, Bakugan), wrote the new film's screenplay.
Eiga Doraemon: Nobita no Esekai Monogatari (Doraemon: Nobita's Art World Tales), the 44th film in the Doraemon franchise, opened in Japan on March 7.
Sources: Doraemon films' X/Twitter account, Comic Natalie
