Lights! Camera! Fashion!

See the stylish, sexy and outrageous costumes we spotted Dakota Fanning, Elizabeth Olsen, Reese Witherspoon and more A-listers wearing on set

HAILEE STEINFELD

Also filming Can a Song Save Your Life? in N.Y.C., the young actress shows her range and toughens up in layered necklaces, a denim mini and torn tights.