One gripe I have with the movie is that they made all the characters kinda too 'stupid', even the ones that traditionally had a bit more intelligence such as Owl, Rabbit, and Kanga.
Definitely agree with this, although in most instances I thought it was funny. All of Owl's scenes were gold, Kanga had some great lines, and even Rabbit had his moments. I just didn't like how they changed Rabbit so much.