For some weird reason, this movie felt really long... It's probably because it was kinda uninteresting compared to the rest of the Pokémon movies that I've watched. *shrugs*
Now, as far as the movie characters are concerned, Kodai was an interesting villain, but really cruel nonetheless. The scene of Zoroark being tortured inside the cage as she tried to get out of it, so that she could go find Zorua again, and the one of Kodai almost choking Celebi to death just broke my heart... :( The rest of the characters were not very memorable, though, except for Zorua and Celebi, who were really cute. ;P
Great animation (as far as I can tell, anyway), and it was nice that this movie got to showcase two new Generation V Pokémon, but it definitely wasn't a breathtaking experience. In my opinion, at least.