Marchesa’s Georgina Chapman is no stranger to the Lifetime network’s TV cameras and now the designer’s labelmate, Keren Craig, will be joining her on the tube in the behind-the-scenes documentary “Project Runway Spotlight: Marchesa.”

The 30-minute special, which airs December 20, will explore how the glitzy label rose to become Hollywood’s red-carpet favorite, with cameos from some of Marchesa’s mega-watt clients and an interview with none other than Anna Wintour.

Part of the long-running “Project Runway” franchise — which Chapman’s husband, mogul Harvey Weinstein, produces — the new doc will debut directly after “Project Runway: All Stars,” on which Chapman is a judge.

“Project Runway Spotlight: Marchesa” premieres on Lifetime at 10 p.m. on Thursday, December 20.

–Heather Corcoran

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Tags: Anna Wintour, Heather Corcoran, Marchesa, News, Project Runway