Brad’s got Barkin’s back!

Actress Ellen Barkin lets Brad Pitt borrow her back to sign autographs at the CineVegas opening night premiere of Ocean’s Thirteen on Wednesday at the Palms Casino Resort in Las Vegas, Nevada.

Brad sported a new marking on his left hand — new cross tattoo or just a Sharpie marker drawing?

The Ocean’s 13’s producer Jerry Weintraub was honored with the Vanguard Producer Award during opening night festivities—Lights, Camera, Take Action.

The premiere benefited the aid group, International Rescue Committee for Not On Our Watch, an organization whose initial campaign is to support existing Darfur humanitarian relief efforts and to ensure the protection of civilians in that region.

15+ pictures inside of Brad and the Ocean’s 13 gang…

The cast of Ocean’s Thirteen promote their third caper together at the Palais des Festivals during the Cannes Film Festival Thursday in France — Brad Pitt, Carl Reiner, Andy Garcia, Scott Caan, Don Cheadle, and George Clooney.

Pictured below: Director Steven Soderbergh, Shaobo Qin, Eddie Jemison, Matt Damon and Ellen Barkin.

The O13 cast raised 9.2 million dollars at a glittering soiree late Tuesday for an organization founded by the stars — Not On Our Watch — which will will aid hundreds of thousands uprooted by conflict in Darfur.

25+ pictures inside of the Ocean’s 13 cast in Cannes…

Brad Pitt (in Tom Ford again) and the rest of his A-list costars — George Clooney, Matt Damon, Don Cheadle, Andy Garcia — leave the Eden Roc Hotel to have attend the Ocean’s 13 benefit cruise aimed at ending genocide in Darfur.

Says Reuters, “A Cannes debut represents a risk for a major Hollywood movie like Ocean’s because reviewers in the French Riviera resort tend to throw their support behind European, Asian and U.S. art house films, and foresake Hollywood studio fare like Ocean’s.”

Brad said, “There is a fair argument for deep and thought-provoking … types of films as well as pure, unadulterated entertainment.”

Damon added, “You still want the bigger movies to be good.”

Clooney quipped, “It’s really not about the film, as much as winning the [Palme d’Or] award.” (It’s handed out to the best film in Cannes but Ocean’s Thirteen doesn’t even qualify.)

Damon joked, “We think we’re going to win.”

More pictures inside of the O13 cast…

Check out these new movie stills of Steven Soderbergh’s Ocean’s 13 including Brad Pitt combing through evidence inside one of costar Al Pacino’s hotel rooms.

Look out for the full Ocean’s 13 trailer to be released online on Thursday, March 29. The film will have its international premiere at the 60th Cannes Film Festival in May. O13 will opens nationwide on June 8.