Brad Pitt holds the title of the Most Powerful Actor and his companion, Angelina Jolie, holds the title of the Most Powerful Actress in the Guinness Book Of World Records 2009 edition. They replace Tom Cruise and Jennifer Aniston who held the titles in the 2008 edition. Guinness editors select the winners in the publication's annual Most Powerful categories based on a combination of such factors as Internet searches, annual earnings, and news-media stories. Pill and Jolie did not dominate in all fields, however. The most-searched subject celebrity on the Internet over the past year, the Guinness folks observed, has been Britney Spears.