Ocean's 13 stars George Clooney, Brad Pitt, Matt Damon and Don Cheadle will use their premier to support relief efforts in the Darfur region of western Sudan.

A launch party for the new organization Not On Our Watch will be thrown on May 22nd in Cannes, two days before the Warner Brothers sequel makes its world premiere. According to Variety, there will be a couple of benefit premieres for Ocean's Thirteen in Las Vegas and Chicago. All proceeds will go to the new organization.

The North American premier will take place on June 5th, in Los Angeles. Earlier in the day, Clooney, Pitt and Damon will have their handprints and footprints cemented in front of Grauman's Chinese Theater.

Not on Our Watch will support existing relief efforts in war-torn Darfur. The organization is working to protect the people living in that region.