The Back-to-School Charm of a Messy Knot: From Rooney Mara’s Off-Kilter Twist to Katie Holmes’s College Bun InlineAugust 20, 2015Save StorySave this storySave StorySave this storyExpandPhoto: Splash News1/4Katie HolmesExpandPhoto: All Access Photo Group2/4Rooney MaraExpandPhoto: Splash News3/4Charlize TheronExpandPhoto: AKM-GSI4/4Elle Fanning