Question: Which short film was directed by John Sanford and Elaine Bogan for the How to Train Your Dragon franchise?
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