Rose Byrne Is Looking Dainty

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LOS ANGELES, CA - JULY 14:  Actress Rose Byrne attends Zimmermann 2011 Resort Collection Dinner at the Chateau Marmont on July 14, 2011 in Los Angeles, California.  (Photo by Donato Sardella/WireImage)
Photo: Donato Sardella/2011 Donato Sardella

Rose Byrne hosted a party in Los Angeles to promote the launch of Australian fashion brand Zimmermann's resort collection. She wore a white and beige paneled dress by the label that featured delicate cutouts and embroidery at the neckline, and a pair of white lacy Nicholas Kirkwood heels.

Does this dress fall on the right side of floaty, or does it swallow Rose just a bit? And does her tightly coiffed updo compete with the ethereal vibe of the outfit?