The secret origin of Hellboy.

As one of the most successful independent comic book creators, Mike Mignola has inspired generations of writers and artists. This feature-length documentary explores the legacy of the legendary comic book creator behind Hellboy, and delves into Mignola's career from his early days at Marvel, to his success with Hellboy, featuring insights from Neil Gaiman on the Mignolaverse and Rebecca Sugar on Mignola's influence on Steven Universe.