Brad Pitt, Sharon Stone and Jim Broadbent have joined Meryl Streep, Annette Bening, Gwyneth Paltrow and Jill Clayburgh in a new film about former US President Richard Nixon, according to The Hollywood Reporter.

The movie Dirty Tricks follows the women involved in the Watergate scandal and will star Meryl Streep as Martha Mitchell, the whistle- blowing wife of Nixon chief of staff John Mitchell.

Annette Bening plays White House correspondent Helen Thomas, the recipient of many of Mitchell's leaks. Gwyneth Paltrow will play Maureen Dean, the wife of John Dean who, unlike Mitchell, stood squarely behind her man as the administration went down in scandal. And Jill Clayburgh will play Pat Nixon, who grew to loathe Mitchell for destabilizing the presidency.