Tales from Earthsea is a bad adaptation of a bad book series. I do not like the Earthsea series. As an adaptation, this movie is not good. As its own thing, this movie is not good. It's hard to follow the story and the only character I liked was the old man copied from Yupa from Nausicaa. The music was nice and the dragons had some great animation, but nothing else was worthwhile about this. There might be some themes you can find, but they won't be very good because it's such a rushed story. Why did the main boy kill his father? We'll never know.
Skip this movie, it is a waste of time.