While you're right about Giratina being weak against fairies, Giratina is Ghost/Dragon, anf Fairy is strong against Dragon, Dark, and Fighting, and...Giratina's not a dark type.Yeah, watching this movie now, it's not a good movie. Heck, I can write a better version of it than that, and for my Pokemon fan fic, I think I will! And yes, the Arceus movie is better, even if it doesn't make a whole lot of sense. Heck, Shaymin was WAY better in Pokemon Mystery Dungeon: Explorers of the Sky, which is a great game.
Giratina can travel through mirrors? Oh I get, he's Dragblacker.