Last Night's Look: Love It or Leave It?Scarlett Johansson plays up her curves, Emma Watson brings sexy back, Jennifer Connelly flashes some leg and more stars show off their red carpet style. Check them out, then vote – fashion-forward or fashion fail?

EMMY ROSSUM

Who knew a knee-length sheath could look so sexy? The actress wears a curve-hugging, printed Vera Wang design to a screening of Need For Speed in N.Y.C.