Quoted By:
>The entire backstory of the movie was changed in the dub. A segment of approximately two minutes, which told the story of the origin of the Soul Dew in Alto Mare's ancient history, was cut. This cut also removed the reference to the fact that many Latios and Latias visited and left Alto Mare frequently, causing some confusion to dub watchers when two Latios and a Latias appeared in the credits. This scene is very unique because the animation was done in a storybook-like fashion, something that was only done in the fourteenth movie, when it did appear in the dub.
>A replacement backstory was added in the form of a story about an evil Trainer who once attacked the people of the city with a Kabutops and Aerodactyl until Latios brought water to the town, drowning the evil Pokémon and turning the streets into canals. Lorenzo also mentions having witnessed the evil Trainer's misdeeds, thus giving him a more personal investment in protecting Latios and Latias.
Damn 4kids, why you gotta be like that?