Lily James loves to have fun with fashion [1], routinely showing off princess gowns designed by British labels like Alexander McQueen [2] and Mary Katrantzou. But for the European premiere of Pride and Prejudice and Zombies [3], the actress threw us for a loop. Lily brought on the edge, opting for a crop top and skirt set from Erdem's Spring '16 line, which featured sheer panels and tiered ruffles.

Lily let black heart-shaped Aquazzura pumps peek out from beneath her maxi and turned up the romantic vibes by loosely tying her hair with a complementing sash. She accessorized with eye-catching diamond studs and, as per usual, spun around to show off her coordinates, taking full advantage of her pockets. Read on to fall in love with Lily's outfit, then re-create it for yourself. Next step: mastering that fashion-girl twirl.