58. Rachel McAdams
Rachel McAdams added more hits to her résumé this year. She teamed up with her Sherlock Holmes: A Game of Shadows partners Jude Law and Robert Downey Jr. to promote the picture. Rachel added to her list of enviable costars when she and Channing Tatum released The Vow around Valentine's Day. The romance was a hit and earned Channing and Rachel an MTV Movie Award nomination for best kiss.
In her personal life, Rachel's going strong with boyfriend Michael Sheen. Rachel and Michael supported each other at various events during the year, and she even traveled to Europe to cheer him on during his West End stage debut.