First of all, let's laugh at the adults moaning about this film being 'terrible' or 'shallow'. Apart from being entirely wrong, they also seem to have forgotten that this ones for the kids!
There are really two points of view that matter here; the kid that watches the movie repeatedly and the adult that has to put up with it! On the first account my three year old son has been watching this for at least a year and still loves it. Multiple viewings don't seem to have tarnished it much at all and the opening three minutes still make him giggle with delight.
For me, as the suffering adult, I'd still give it a high rating. The animation is stylish, the casting perfect and the script funny. As has been mentioned in other reviews, the penguins are absolutely classic! I also loved the American Beauty and Planet Of the Apes references. OK, I admit it. I'm a big kid and as such I also give it the thumbs up!
Parents, get this!