Dr. Horrible's Sing-Along Blog S00 E03 The Making of Doctor Horrible's Sing-Along Blog - Part 1 - The Movie

"For every day, there is a night. For every world, there is an underworld. And for every hero... there's this guy!"

Part 1 of a mini documentary series that consists of interviews with cast and crew alike on the makings of 'Dr Horrible's Sing-Along Blog'