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Blake Lively, Helen Mirren & Rosie Huntington-Whiteley: Who Was Best-Dressed At CinemaCon Awards? (PHOTOS, POLL)

04/01/2011 10:30 am ET | Updated Jun 01, 2011

A handful of leading ladies stepped out to Thursday night's CinemaCon Awards ceremony in Las Vegas.

Blake Lively donned crepe paper and stuck her finger in an electric socket a short Marchesa number, Helen Mirren kept it classy in cream and Rosie Huntington-Whiteley opted for a chiffon gown by Kevork Kiledjian.

Take a look and tell us who was best-dressed.

Blake:

Helen:

Rosie:

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