Yeah, Sky Warrior seems misleading, because of Shaymin's cutesy nature. But then again, Sky's Bouquet sounds like a sky Pokemon that is obviously female. I mean, back when I barely knew any Gen. 4 Pokemon, I thought the movie was going to be about some legendary Pokemon named Giratina vs. a graceful, feminine legendary Pokemon that's reminiscent of flowers/a bouquet. Now that I think about it, Cresselia seems fitting, since the Crescent Moon is of the sky, and the 'Bouquet' term could just mean a tranquil, beautiful Pokemon that arrives from the sky...
Anyway, I'm psyched about Giratina's 2nd appearance in the Pokemon anime!!