Saw this yesterday. Pure Love!!! I didn't even find the kid character annoying! I've seriously never seen any movie remotely close to the look of this one; and it looked fucking beautiful on the IMAX screen!
As I was coming out of the theatre, there was a super-excited kid playing on the flood doing flips & stuff with his Hot Wheels car. "See", I thought, "kids would love this movie if we could just get them to the theatre!". I actually think it's a better kid-movie than Iron Man is (but Iron Man works waaaaay better for regular adults).