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 6 of 14 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Previous Next Start Slideshow Celebrity FashionOnce Upon A Time In HollywoodAll AnglesMargot RobbieDressesOscar De La RentaRed Carpet