Actress <a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=Mamie+Gummer&family=editorial&specificpeople=805216 ng-click='$event.stopPropagation()'>Mamie Gummer</a> attends the 5th Annual Women In The World Summit at the David Koch Theatre at Lincoln Center on April 3, 2014 in New York City.