The movie was not bad. It was a good story with great effects. But...it was way too long. It may just be me because 3D movies tend to give me a headache. I think the story line dragged out to allow for more effects that could have been omitted.
The animation and detail in this movie are spectacular! It was a little scary in some of the detail and sound, so I would be a little wary of younger children (my son is 11, so he was ok).