We took our 5yr old to this last night, I was a little hesitant because of the rating. But he really wanted to see it and well... McDonald's is endorsing it with Happy Meals, so I figured it can't be too bad. The Movie was GREAT! It had a good story line and super special effects. We all loved it. I am glad that my son still has his innocence because there was some strong foul language in the movie, including "F" Bombs and "G.D." So these went over his head. And for this reason I caution Parents.
But yes, we loved it and would highly recommend seing the Movie.