On 12 March 2014, independent distributor GKIDS announced that it had acquired the US rights for the film and that it would release an English dub version produced by Studio Ghibli and Frank Marshall.
Pada 12 Maret 2014, distributor independen GKIDS mengumumkan bahwa mereka memegang hak distribusi AS untuk film tersebut dan mereka akan merilis versi pengalihan bahasa Inggris yang diproduksi oleh Studio Ghibli dan Frank Marshall.