Pokémon: Giratina & the Sky Warrior[a][b] is a 2008 Japanese animated adventure film produced by OLM, Inc. and distributed by Toho. The film was directed by Kunihiko Yuyama from a screenplay by Hideki Sonoda. It is the 11th animated film in the Pokémon film series created by Satoshi Tajiri, Junichi Masuda and Ken Sugimori, and serves as a direct sequel to Pokémon: The Rise of Darkrai (2007). In the film, a researcher called Zero seeks to sacrifice and absorb the interdimensional abilities of a Pokémon known as Giratina, which has surfaced in Zero's world following the events of the previous film, so that Zero can become the ruler of Giratina's world. Meanwhile, the Pokémon trainers Ash Ketchum, Dawn, and Brock escort a flower-bearing Pokémon called Shaymin, which is being followed by Giratina, to reunite it with other Shaymin at a flower garden. It was released in Japan on July 19, 2008. A sequel, Pokémon: Arceus and the Jewel of Life, was released in 2009. The theme song for the film is "One" by Crystal Kay.