Pokémon the Movie: Hoopa and the Clash of Ages, known in Japan as is a 2015 Japanese anime adventure film and the 18th in the Pokémon film series created by Satoshi Tajiri. It was directed by Kunihiko Yuyama, written by Atsuhiro Tomioka and produced by OLM. The film stars the voices of Rica Matsumoto, Ikue Ōtani, Mayuki Makiguchi, Yūki Kaji, Mariya Ise, Megumi Hayashibara, Shin-ichiro Miki, Inuko Inuyama, Rie Kugimiya, Kōichi Yamadera, and Shoko Nakagawa. In the film, Hoopa, a Pokémon able to summon people and other Pokémon, splits into two forms: the real Hoopa, and a shadow created after Hoopa's powers were sealed for 100 years. Hoopa's shadow attempts to control the form of the real Hoopa.

Plot

100 years ago, the power of the Pokémon Hoopa was confined inside the Prison Bottle after it became destructive and out of control. In the present, Ash Ketchum and his friends, Pikachu, Serena, Clemont, and Bonnie are pulled through a portal created by Hoopa's interdimensional rings to Dahara City. Hoopa attempts to use its rings to transport everybody to the nearby Dahara Tower but it is revealed that, in its altered state, Hoopa cannot travel through the rings it creates. Baraz, one of Hoopa's caretakers and the great grandson of the man who sealed off Hoopa's power, arrives with the Prison Bottle. The bottle possesses Baraz and makes him release a shadow of Hoopa created from the anger of being confined for 100 years. Hoopa's power is put back into the bottle.