Question: What film in the HTTYD franchise was written and directed by Dean DeBlois?
Sentence (from "How to Train Your Dragon (franchise)"): How to Train Your Dragon franchise (also referred to as simply HTTYD) from DreamWorks Animation consists of two feature films "How to Train Your Dragon" (2010) and "How to Train Your Dragon 2" (2014), with a third and final planned for a 2019 release.
Relevant evidence: Yes