How to Train Your Dragon is a 2010 computer-animated fantasy film by DreamWorks Animation very loosely based on the 2003 book of the same title, the plot completely rewritten as well as nearly everything else, besides a few character names. The film stars the voice talents of Jay Baruchel, Gerard Butler, Craig Ferguson, America Ferrera, Jonah Hill, T.J. Miller, Kristen Wiig, and Christopher Mintz-Plasse.

The movie is the first to use the new DreamWorks Animation logo.

The story takes place in a mythical Viking world where a young Viking teenager named "Hiccup" aspires to kill a dragon in order to get notice in a viking society. He finally shoots down a dragon, capturing it with a bolas cannon, though no one sees his feat nor believes him. But even with his chance at finally proving himself, he finds that he no longer has the desire to kill the dragon he captured and with time, befriends it. The film was released March 26, 2010,[2] to near universal acclaim, but with a relatively disappointing premiere box office gross. However, the subsequent enthusiastic audience word of mouth created an outstanding sustained run that led to the film being reassessed as a major success and the start of a new media franchise for its studio.