Wasn't overly impressed for the first 20 minutes of the movie but once Hiccup meets the dragon things improved immensely. Was really bowled over by the whole Imax experience and would definitely recommend spending the extra bucks to see it this way- thought the flying sequences were up there with Avatar. Beware: our 3-yr-old was very scared during several scenes and, coupled with the fact that the 3D glasses were way too big for him and kept falling off (when will they realise kids are the main audience for these 3D movies and bring out smaller glasses?!), we kinda wasted $15 on his ticket.