Why did Vanity Fair really cancel its annual Cannes Film Festival bash this year? Perhapsbecause the mag’s in-house event planner was too busy organizing editorGraydon Carter’s wedding. “Graydon wantedSara Marks [VF’s director of special projects]to spend all her time working on his wedding, so he canceled Cannes,”gripes a Condé Nast insider. “Sara’s doing it as part of herregular salary, which does not come out of Graydon’s pocket. It’sexactly the same thing he did when he wrote his book What We’veLost—getting all those researchers to work on it on the companydime.” (VF spokeswoman Beth Kseniak saidMarks’s work on the wedding is a “gift” to Carter.) With allthat money saved on planning, what exotic locale has Carter chosen? Though the Canadian-born editor briefly considered tying the knot inIreland, he later settled on a more prosaic setting for the May 21 nuptials:his own grandly named Swift House estate in Roxbury, Connecticut. (PalsBarry Diller and Diane von Furstenberg arehosting a small luncheon the next day at their nearby spread.) With a VFstaffer doing most of the grunt work, busy Carter canconcentrate on more important things—like the band. Rumor has ithe’s arranged for a “big-name” surprise musical guest toserenade his new bride, former VF publicist AnnaScott. Will Dominick Dunne be dusting off hisbanjo?