Oliver Stone at 2006 National Board of Review of Motion Pictures Awards Gala presented by Bvlgari. New York City, USA - 09.01.06

The World Trade Center filmmaker - who served as a private in the Vietnam War - will film American service personnel for the forthcoming advertisement, supported by the MoveOn and VoteVets organisations.

Stone says, "America needs to listen to our servicemen and women.

"We have leaders in Washington who say they're 'supporting our troops' - but the people who suffer most from their policies are the troops themselves," said Stone in a statement."

Source: WENN