Each item was cut open, relined, re-proportioned, and embroidered. They've all changed their destiny, so to speak. Some of Hollywood's youngest ingenues were embracing the breezy insouciance of a white shirt, too. Ever the trend-setter, Zendaya stepped onto the red carpet in one of her favorite silhouettes-an ab-baring Valentino two-piece-but swapped out her typical bandeau tops for a cropped...