Pokémon Heroes: Latios and Latias, commonly referred to as Pokémon Heroes, originally released in Japan as Pocket Monsters the Movie: The Guardians of Altomare (劇場版ポケットモンスター 水の都の護神 ラティアスとラティオス, Gekijōban Poketto Monsutā Mizu no Miyako no Mamorigami Ratiasu to Ratiosu, lit. "The Guardian Gods of the City of Water: Latias and Latios"), is a 2002 Japanese anime film directed by Kunihiko Yuyama. It is the fifth film in the Pokémon series, complimenting Pokémon: Master Quest (the last season of Pocket Monsters story arc in the Japanese version). The film was released in Japan on July 13, 2002, and stars the regular television cast of Rica Matsumoto, Yuji Ueda, Mayumi Iizuka, Megumi Hayashibara, Shin-ichiro Miki and Ikue Ōtani. The English adaptation was produced by 4Kids Entertainment and distributed by Miramax Films (a subsidiary of The Walt Disney Company), and saw a limited release in the United States on May 16, 2003, before being released to video and DVD in January 2004. The English version stars the regular television cast of Veronica Taylor, Eric Stuart, Rachael Lillis and Maddie Blaustein.
Although Cartoon Network currently airs the film, it also aired on Toon Disney on November 27, 2007 (because Miramax, owned by Disney, released this animated film), being the fourth Pokémon film to air on Toon Disney (the first three being Pokémon: Jirachi Wishmaker, Pokémon: Destiny Deoxys, and Pokémon 4Ever).
Pokémon Heroes focuses upon the main characters, Ash, Misty and Brock, traveling through the Johto region once more; the main location of the movie is based on Venice, Italy. The name given to the city in the movie is Alto Mare, meaning "High sea" in Italian. Although it is part of the group's adventure in Johto, the island is located in the Hoenn Region.
Optimum Home Entertainment re-released the movie on DVD in UK on May 9, 2011 Studio Canal re-released this film along with Pokémon 4Ever on Blu-ray in the UK as a double feature pack on April 2, 2012, just one day before Pokémon the Movie: Black—Victini and Reshiram and White—Victini and Zekrom came out on DVD on April 3, 2012.
The story behind this short film revolves around the Pichu brothers as they attempt to find a train back to the big city. Along the way, they are helped by seven of Ash Ketchum's and Misty's Pokémon (Pikachu, Cyndaquil, Totodile, Phanpy, Corsola, Togepi, Psyduck) and a Wynaut. Meanwhile, Meowth and Wobbuffet are hiking in the back country, but their journey continuously goes wrong and their paths intertwines with the others.