By Joshua Rich
February 24, 2009 at 05:23 AM EST

Two-time Academy Award winner Sean Penn is in talks to play Ambassador Joseph Wilson, the husband of outed CIA agent Valerie Plame Wilson, in Fair Game, director Doug Liman’s movie version of the scandal that rocked Washington, D.C., during the George W. Bush Administration, Variety reports. Naomi Watts has been cast as Wilson, on whose memoir the film will be based. Watts and Penn previously starred together in 21 Grams.