Normally we'd think an ultra-low-cut white dress would look terrible on Rachel McAdams, but boy were we wrong. McAdams looks both sexy and elegant in this well-fitted dress. And we love the hair color!
Photo Credits: Jon Kopaloff/FilmMagic; Christopher Polk/Getty Images for NARAS; Courtesy of Warner Bros. Pictures, Courtesy of Warner Bros. Ent.; John Shearer/WireImage; Bob Mahoney/The CW; Paramount Home Entertainment; YouTube.com; Frazer Harrison/Getty Images