This movie is logically wrong. There was no good reason provided to start a war except that the mesenger brought skulls to scare them. Sparta king looked silly in chosing a war. I havent read the book. But this movie shows Asians as stupid carrying weird animals with them. This movie just didnt make any sense whatever the merit of the book is. The death metal they played in background score was again a weird choice for music.
Overall its just a plain vanilla animation meets movie.
