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".
Unfortunately the movie Legend of the BoneKnapper Dragon is not yet available on HBO Max.
| Writing | Peter Steinfeld | Writer |
| Directing | John Puglisi | Director |
| Directing | Mick De Falco | Layout |
| Crew | Simon Otto | Supervising Animator |
| Sound | John Powell | Original Music Composer |
| Writing | Cressida Cowell | Book |
| Production | Bonnie Arnold | Executive Producer |
| Art | Kathy Altieri | Production Design |
| Sound | Jonathan Null | Supervising Sound Editor |
| Visual Effects | Line Korsgaard Andersen | Animation Supervisor |
| Production | Bruce Seifert | Producer |
| Visual Effects | Craig Ring | Visual Effects Supervisor |
| Camera | Robert Crawford | Head of Layout |
| Sound | Adam Milo Smalley | Music Editor |
| Editing | Susan Fitzer | Editor |
