Who wore what this weekend: Keira Knightley, Keri Russell, and more

Celebrity Sightings In New York City - June 26, 2014
Celebrity Sightings In New York City - June 26, 2014

Keira Knightley stepped out this weekend in pretty much the epitome of what we want to wear this summer -- a buttoned-up, flirty light blue Prada frock, paired with cool shades and a twisty hairstyle.