Pokémon the Movie: Diancie and the Cocoon of Destruction
2014 anime film directed by Kunihiko Yuyama

Pokémon the Movie: Diancie and the Cocoon of Destruction (ポケモン・ザ・ムービーXY 「破壊の繭とディアンシー」, Pokemon Za Mūbī Ekkusu Wai Hakai no Mayu to Dianshī; lit. 'Pokémon the Movie XY: Diancie and the Cocoon of Destruction') is a 2014 Japanese animated fantasy adventure film created by Satoshi Tajiri and produced by OLM. It is the seventeenth film of the Pokémon anime series and the first film of Pokémon the Series: XY. Directed by Kunihiko Yuyama and written by Hideki Sonoda, the film stars the voices of Rica Matsumoto, Ikue Ōtani, Mayuki Makiguchi, Yūki Kaji, Mariya Ise, Megumi Hayashibara, Shin-ichiro Miki, Inuko Inuyama, Marika Matsumoto, Reiji Nakagawa, Shoko Nakagawa, Rika Adachi, and Kōichi Yamadera. In the film, Diancie, a Pokémon who is the Princess of an underground kingdom, joins the Pokémon trainer Ash Ketchum and his friends, Pikachu, Serena, Clemont, and Bonnie on a journey to meet the Legendary Pokémon Xerneas, who will awaken the power in Diancie to create a source of energy that will save the kingdom.
It was released in Japanese theaters on July 19, 2014. An English dub of the film was produced by DuArt Film and Video, and stars the voices of Sarah Natochenny, Haven Paschall, Michael Liscio Jr., Alyson Leigh Rosenfeld, Michele Knotz, Carter Cathcart, Caitlin Glass, Pete Zarustica, Brittney Lee Hamilton, Lianne Marie Dobbs, and Marc Thompson. It premiered in Australia and in New Zealand in theaters on November 8, 2014, and also aired in the United States on that date on Cartoon Network.
Plot
The Heart Diamond, the sole energy source of the underground kingdom called the Diamond Domain, is failing and needs replacing. The only one who can create a new Heart Diamond and save the kingdom is the Mythical Pokémon Diancie, the kingdom's Princess, but she does not yet have the power to make one. Diancie goes on a journey to meet the life-giving Legendary Pokémon Xerneas, who will allow Diancie to discover the power to create a Heart Diamond. After months of searching for Xerneas, Diancie goes to explore a city she spotted. She meets the Pokémon trainer Ash Ketchum and his friends, Pikachu, Serena, Clemont, and Bonnie.
This brief starts where responsible research should: with the source description of “Pokémon the Movie: Diancie and the Cocoon of Destruction” as 2014 anime film directed by Kunihiko Yuyama. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the arts & letters register because the source frames it as 2014 anime film directed by Kunihiko Yuyama. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Object files, edition statements, performance records and contemporary criticism preserve different stages of the work’s history. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q15304052. 4 of 4 selected statements include explicit references; 4 carry qualifiers and 0 use preferred rank. The first chronological checks are 2014.
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This entry incorporates text from “Pokémon the Movie: Diancie and the Cocoon of Destruction” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.