The Making of Dr. Horrible's Sing-Along Blog
- Jier: 2007
- Lân: United States of America
- Sjenre: Documentary, Comedy
- Studio: EasyAction
- Keyword: making of
- Direkteur: Ethan Shaftel
- Cast: Felicia Day, Nathan Fillion, Neil Patrick Harris, Simon Helberg, Maurissa Tancharoen, Jed Whedon