claim: Legend of the Boneknapper Dragon is a 2010 animated short film by the same company that produced "The Road to El Dorado". It is contained in the franchise based on the books written by Cressida Cowell and illustrated by Johnny Appleseed.
supporting_facts.key: How to Train Your Dragon (franchise)
supporting_facts.key: Legend of the Boneknapper Dragon
supporting_facts.key: Cressida Cowell
supporting_facts.key: The Road to El Dorado