A new episode of The Good Wife premiered last night, in which the entire cast had to put on their best black-tie attire in support of the Chicago Shamrock Dinner. Julianna Margulies’s character Alicia Florrick spent the entire episode (and nine days of shooting!) in a beautiful two-tone gown by Lanvin (which was plucked from the racks of Neiman Marcus), while on-screen husband Peter (Chris Noth) looked stately in a tailsuit—one costume designer Daniel Lawson bought online!—and boss Diane Lockhart (Christine Baranski) came off completely judicial in a bold blue Oscar de la Renta dress pulled from the floor of Bergdorf Goodman. “For me, to see the whole thing on screen brought tears to my eyes and Julianna just looked so luminescent,” said Lawson, who worked tirelessly to dress 70 people (including the Cardinal and the waiters, too!) for this television event. “It was only the second formal event we ever had to dress the cast for,” Lawson noted, “and we wanted it to be very special.” Get all the exclusive details on last night’s looks he picked in the gallery, and follow Lawson on Twitter @GoodWifeFashion for the latest updates.

good wife fashion

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• Good Wife‘s Costume Department!
Julianna Margulies’s Best Looks