Legend of the Boneknapper Dragon (2010)

Available: 14 October 2010 (USA)
Genre: Animation|Short|Fantasy
Rating: TV-PG
Director: John Puglisi
Writers: Peter Steinfeld, Cressida Cowell, Jeff Snow, Aimée Marsh,  Johane Matte, Ken Morrissey, David Moses Pimentel

Synopsis:

When Gobber’s house burns down, the old Viking is convinced that his nemesis, the legendary Boneknapper Dragon, is responsible. Bent on revenge, Gobber resolves to hunt it down once and for all, despite the fact that no one believes the dragon exists. Regardless, Hiccup and the gang decide to accompany him for his own good. On the sea voyage, Gobber tells the story of his rivalry with the beast, which gets sillier with each episode. When the gang find themselves shipwrecked on the suspected island of the beast, they are about to learn the truth about the dragon.

Jay Baruchel as Hiccup Horrendous Haddock III (voice)
Gerard Butler as Stoick the Vast (voice)
Craig Ferguson as Gobber the Belch (voice)
America Ferrera as Astrid Hofferson (voice)
Jonah Hill as Snotlout (voice)
Christopher Mintz-Plasse as Fishlegs (voice)
T.J. Miller as Tuffnut (voice) (as TJ Miller)
Kristen Wiig as Ruffnut (voice)