Sofia Coppola and Phoebe Dynevor were the epitome of Sundance chic at the film festival's Sommsation wine event on Friday night.Phoebe, 27, modeled a flowing silver knit turtleneck sloppily tucked into her black slacks for her latest public appearance.Meanwhile Sofia, 51, was even more suitably dressed for the chilly climes of wintertime in Park City, Utah, where the festival takes place. Festival festivities: Sofia Coppola (left) and Phoebe Dynevor (right) were the epitome of Sundance chic at the film festival's Sommsation wine event on Friday nightShe bundled up in a monochrome anorak over a basic black ensemble that, in a nod to the event's mountain setting, included boots.