Stars Who Love Zac Posen
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Jessica Chastain
The Zero Dark Thirty actress has Posen to thank for providing one of her favorite red carpet memories. "The Zac Posen dress on the red carpet at Cannes [is my favorite look I've worn]! I wanted to wear a dress that looked like sunshine," Chastain tells Us. "Holding hands with Sean Penn and Brad Pitt while wearing that yellow dress is a moment I'll never forget."