Last Night's Look: Love It or Leave It?We can't stop talking about Reese Witherspoon's LBD, Jennifer Lopez's voluminous skirt and more outfits that stars were just spotted in. Check them out, then vote – fashion-forward or fashion fail?

ROONEY MARA

Yes, she's wearing all-black, but there's nothing boring about Rooney's J.W. Anderson separates (which show off her toned abs) and black Jimmy Choo ankle-strap sandals, worn to the premiere of Ain't Them Bodies Saints in L.A.