The disclaimer "no animals were harmed" doesn't mean much.

The American Humane Association doesn’t monitor the conditions of animals off the set, and training is when abuse is most likely to occur.

If you care about animal rights you should boycott any movie that features wild animals as actors, because even if the animal wasn't harmed during filming you don't know the animal's living conditions, level of veterinary care, or what it was subjected to during training.