**FILE**Actresses Courteney Cox Arquette, left, and Jennifer Aniston, of the television series "Friends," arrive at the 9th annual Screen Actors Guild awards in Los Angeles, in this file photo from March 9, 2003. Aniston guest stars in the season finale of Cox's new FX Networks show "Dirt," the network said. She plays Tina Harrod, a rival magazine editor of Cox's ruthless tabloid queen, Lucy Spiller. (AP Photo/Chris Pizzello-File)