Pokémon: Giratina and the Sky Warrior

Ash and his companions encounter Shaymin, a Pokémon associated with gratitude, which leads them into a conflict involving the powerful Giratina. After a battle between legendary Pokémon disrupts the boundaries of space and time, Ash and his friends are drawn into a parallel dimension known as the Reverse World. While there, they meet a researcher named Newton Graceland and must work to prevent a mysterious individual from exploiting Giratina's ability to manipulate dimensions for evil purposes.

Directed by Kunihiko Yuyama, this Japanese animation is the 15th of 28 films he directed, following Pokémon: The Rise of Darkrai and preceding Pokémon: Arceus and the Jewel of Life. The screenplay was written by Hideki Sonoda and produced by Choji Yoshikawa, Takemoto Mori, and Junya Okamoto. The voice cast features Rica Matsumoto, Ikue Otani, Yuji Ueda, Megumi Toyoguchi, Megumi Hayashibara, and Shin-ichiro Miki, among 22 credited cast members.

Released in 2008, the film earned 48 million USD at the worldwide box office. It holds a rating of 6.1/10 on IMDb based on 3,400 votes and a 6.8/10 on TMDB from 283 votes.