Julia Roberts was channeling Vivian Ward at her niece Emma Roberts’ wedding on July 26. For the nuptials, she flashed her signature toothy smile while wearing a navy and white polka dot dress that couldn’t help but remind us of “Pretty Woman.” The Self-Portrait look ($780) featured tiered ruffles and a V neckline that allowed for the perfect canvas for her layered necklaces. For a dash of luck, the actress, 58, wore a heart-shaped pendant as well as a horseshoe. She also wore drop earrings and a few layered statement rings, adding white sandals and a pair of sunglasses. While Sun Valley, Idaho is not quite the same venue as a Los Angeles…
