Watch Dragons: Dawn of the Dragon Racers (2014) full movie online.
Synopsis: Dawn of the Dragon Racers, is a short film describing how Dragon Racing was invented. Hiccup and all his friends from the dragon academy fight about who really invented it.
Directors: Elaine Bogan, John Sanford
Writers: Cressida Cowell, Art Edler Brown
Stars: Jay Baruchel, America Ferrera, Christopher Mintz-Plasse
More info: IMDB