In computer animated picture How To Train Your Dragon, viking village Berk is frequently attacked by dragons. Hiccup, the awkward son of the chieftain, succeeds to wound a dragon during one of the attacks. Hiccup discovers that he can tame the dragon and learns to ride him.
Composer John Powell succeeded with his score to increase the epicness of the film. When it comes to heroicness the french horns of course play in important part.