Does Rachel McAdams ever look bad? I don't think she ever looks anything less than stunning -- whether she's fresh faced in sweats or glammed up for the red carpet.

But one of my favorite things about her is that she's not afraid to try a new look. She's gone from blonde to brunette and back (like these celebs), executed every makeup trend, and takes fashion risks -- making her style as versatile as her career.

Her latest look at the "Time Traveler's Wife" premiere, is once again, totally striking. McAdams styled her new dark brunette bob with side swept bangs and cute curls. Her makeup focused on her gorgeous green eyes -- a dramatic smoky eye with super long lashes, and subtle pink lips and cheeks. And her dress? The white, slinky number sported an extreme plunging neckline that few could pull off. But McAdams' flawless skin tied the look together.

Do you think she pulled it off?