Legend of the BoneKnapper Dragon An All-New Dragon Adventure The film follows Hiccup and his young fellows accompanying their mentor, Gobber, on a quest to kill the legendary Boneknapper Dragon. An extra that accompanies the film "How to Train Your Dragon". Details Casts Videos Galleries Posters Title Legend of the BoneKnapper Dragon Release Date 2010-10-14 Runtime 00 Hours 16 Minutes Genres Animation Fantasy Family Adventure Comedy TV Movie Production Companies DreamWorks Animation Production Countries United States of America Jay Baruchel... Hiccup Horrendous Haddock... Gerard Butler... Stoick (voice)... Craig Ferguson... Gobber (voice)... America Ferrera... Astrid Hofferson (voice)... Jonah Hill... Snotlout Jorgenson (voice... Christopher Mintz-Plasse... Fishlegs Ingerman (voice)... T.J. Miller... Tuffnut Thorston (voice)... Kristen Wiig... Ruffnut Thorston (voice)... John DiMaggio... Gobber's Father (voice)... Kevin Michael Richardson... Thor (voice)... LEGEND OF THE BONEKNAPPER - Official Trailer (Trailer) Original Size (1920x1080) Original Size (1400x2100) Original Size (1450x2175) Original Size (951x1426) Original Size (1000x1426) Original Size (935x1401) Original Size (800x1200)