Tales from Earthsea

Tales from Earthsea (ゲド戦記, Gedo Senki, lit. Ged's War Chronicles) is a 2006 Japanese animated fantasy film directed by Gorō Miyazaki and produced by Studio Ghibli.

The film is based on a combination of plots and characters from the first four books of Ursula K. Le Guin's Earthsea series: A Wizard of Earthsea, The Tombs of Atuan, The Farthest Shore and Tehanu; however, the film's title is named from the collection of short stories, Tales from Earthsea, made in 2001. The change of plot was "entirely different" according to the author Ursula K. Le Guin who told director Gorō Miyazaki, "It is not my book. It is your movie." The film is inspired by Hayao Miyazaki's manga The Journey of Shuna.

Plot
Something bizarre has come over the land. The kingdom is deteriorating. People are beginning to act strange... What's even more strange is that people are beginning to see dragons, which shouldn't enter the world of humans. Due to all these bizarre events, Ged, a wandering wizard, is investigating the cause. During his journey, he meets Prince Arren, a young distraught teenage boy. While Arren may look like a shy young teen, he has a severe dark side, which grants him strength, hatred, ruthlessness and has no mercy, especially when it comes to protecting Teru. For the witch Kumo this is a perfect opportunity. She can use the boy's "fears" against the very one who would help him, Ged.

Other Sources

 * Wikipedia
 * Anime News Network (Film)