Popsugar Fashion Celebrity Fashion Margot Robbie's Dress For Once Upon a Time in Hollywood UK Forget a Deep-V: Margot Robbie's Plunging Neckline Stops Right Above Her Belly Button 30 July 2019 by Karenna Meredith View On One Page Photo 14 of 14 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 14 Previous Next Start Slideshow Celebrity FashionOnce Upon A Time In HollywoodAll AnglesMargot RobbieDressesOscar De La RentaRed Carpet