To create the dancing scene featuring cutaway shots of many of the fictional town's citizens in lavish attire, the masquerade ball extras were actually dancing to Justin Timberlake's "Mirror" which was being played over a PA system while the camera weaved throughout the crowd to capture specific couples.
The production employed the help of around 50 extras to populate the masquerade ball sequences of the three final episodes of Season 2. Although production lasted two days, shots that featured extras were wrapped in the first day, after approximately 14 hours of shooting.