Rose Byrne in Preen at the 2015 CinemaCon Big Screen Achievement Awards

Rose Byrne attends the 2015 CinemaCon Big Screen Achievement Awards in Las Vegas, Nevada in a Preen dress from the Fall 2015 collection with floral appliqué and laced-up sides paired with Nicholas Kirkwood shoes and jewelry by Vita Fede and Pearl Collective. Preen Fall 2015 Collection Photo Credit: Getty Images, IMAXTree