This Dr. Horrible's Sing-A-Long Blog foto might contain
calle, escena de la ciudad, entorno urbano, configuración de la escena de calle, ciudad, urbano, portón trasero, trampilla, puerta trasera, and puerta.
"I couldn't help but notice that the first time Barney suited-up was a whole lot like the first time Dr. Horrible suited-up for the ELE. Since they're both Neil Patrick Harris, this video was inevitable. Not ineffable -- inevitable."