During the preview for the episode, Gossip Girl producers
Stephanie Savage and Joshua Safran discussed the premise of the episode and working the episode into the Fashion's Night Out event.
Filming locations Stephanie Savage noted that the show had been working closely with prominent members of New York's fashion industry, citing
Vogue magazine, the
CFDA led by
Diane von Fürstenberg, and the New York City Company to integrate the episode into the event. Real footage on the September 10th event of Fashion's Night Out had been inserted into the episode while working on the event itself. Savage commented on the filming of the episode, stating "it's really cool to be the only show to be working with these amazing organizations to be a part of a real event." Blake Lively and Clémence Poésy filmed their scenes outside a Carlos Miele store in the
Meatpacking District at Downtown, Manhattan on July 15, 2010.
Casting Amanda Setton reprises her role from the
first and
second seasons of Gossip Girl as Penelope Shafai.
Digital Spy announced her return to the show with her character facing off against Blair Waldorf, further adding that "Blair's made a fair few enemies in her life, so it was only a matter of time until it started to come back to haunt her" and that "their roles have been reversed."
Melissa Fumero and Alice Callahan also reprise their roles as Blair's new minions, Zoe and Jessica from the
third season.
Fashion The Fashion's Night Out-themed episode featured a wide array of designer looks from the show from
Reem Acra,
Jenny Packham,
Valentino to Diane von Fürstenberg. Leighton Meester wore a sparkling Valentino dress, one that Sharon Clott from
MTV praised. Blake Lively donned a Jenny Packham dress from her Fall 2010 collection paired with Raphael Young shoes. Katie Cassidy was seen wearing a beige dress designed by Yigal Azrouël with leopard print denim pumps from
Dolce & Gabbana while filming with Lively, who was dressed in a Robert Rodriguez top and a Missoni skirt. Cassidy later wore a Fashion's Night Out tank with a Zadig and Voltaire shirt. On July 14, 2010, a scene at Columbia showed Lively wearing Diane von Fürstenberg and Meester in
Pucci, followed by a floral halter from the Erdem Spring 2010 collection and floral print skirt by
Charlotte Ronson. Clémence Poésy was seen wearing a Carlos Miele gown and Kelly Rutherford donned a purple Reem Acra dress. ==Reception==