Hellboy: In Service of the Demon
- Aasta: 2008
- Riik: Hungary, United States of America
- Žanr: Documentary
- Stuudio: Universal Studios Home Entertainment
- Märksõna: movie business, making of
- Direktor: Javier Soto
- Osades: Guillermo del Toro, Mike Mignola, Ron Perlman, Lloyd Levin, Lawrence Gordon, Doug Jones