Sean Penn for Fair Game

Sean Penn may join Naomi Watts in Fair Game

Sean Penn is reportedly in negotiations to star opposite his 21 Grams co-star Naomi Watts in the upcoming flick “Fair Game”.

The film, helmed by Bourne Identity director Doug Liman, is based on ousted undercover CIA agent Valerie Plame’s memoir.

Penn, who is up for the role of Plame’s (Watts) husband, Ambassador Joseph Wilson. Plame was an undercover CIA agent for years until her cover was blown by political opponents within George W. Bush’s administration.