By InStyle Staff
Feb 10, 2012 @ 10:50 am
James Murphy/Loud & Clear; Gregg DeGuire/WireImage

Break out the tissues—Rachel McAdams's new tearjerker The Vow premieres today! To celebrate, we're taking a look back at McAdams's beauty evolution from Hollywood newcomer to red carpet fixture. Click through to see her hottest hair and makeup moments!

MORE:The Vow Wedding Ring: All the Details!Rachel McAdams's Pink Wedding DressChanning Tatum on The Vow