Actresses Knightley, Johansson pose nude on Vanity Fair cover

Courtesy of Dark Horizons With award season still under way, Scarlett Johansson and Keira Knightley are exchanging ballgowns for birthday suits. Under the artful eye of photographer Annie Leibovitz, the starlets posed nude for the cover of Vanity Fair magazine's yearly Hollywood issue, released yesterday. Fashion superstar Tom Ford also appears on the cover photo, though he stuck with a more traditional suit -- one of black fabric. Ford, the issue's guest art director, said he hadn't planned on becoming part of his own project, but he stepped in when "Wedding Crashers" star Rachel McAdams, 29, backed out. "She did want to do it, and then when she was on the set I think she felt uncomfortable, and I didn't want to make anybody feel uncomfortable" Ford said Tuesday on ABC's "Good Morning America." Other Hollywood stars weren't difficult to persuade, Ford said. "A lot of women actually, a couple of men, too, wanted to take their clothes off," he said.

'Da Vinci Code' adaptation set to premiere at Cannes Film Festival

Case cracked: "The Da Vinci Code" will be the opening-night movie at the Cannes Film Festival in May, organizers said. Based on Dan Brown's esoteric thriller about code-breaking and conspiracy, the film will debut at the Riviera festival and in French theaters on May 17, the festival said Saturday.

Film Inglourious Basterds Title

In this film publicity image released by The Weinstein Co., Brad Pitt is shown in a scene from, "Inglourious Basterds." (AP Photo/The Weinstein Co., Francois Duhamel) ** NO SALES **

A.I. would not approve of the practice regimens of Big Green athletes.

Stardust

Paramount Pictures provided this photo of (left to right) Charlie Cox and Claire Danes in "Stardust." (AP Photo/Paramount Pictures/David James)

Obama 2008

Democratic presidential hopeful, U.S. Sen Barack Obama, D-Il., talks to a group of invited guests during a campaign stop in Hanover, N.H., Monday, Aug. 13, 2007. (AP Photo/Jim Cole)

Newport Jazz Festival

Branford Marsalis plays the alto saxophone with his band during the JVC Jazz Festival, Saturday, Aug. 11, 2007, in Newport, R.I. (AP Photo/Stew Milne)

Despite allegations of steroid use, Barry Bonds has carved his place in baseball history with 757 career home runs.

Despite allegations of steroid use, Barry Bonds has carved his place in baseball history with 757 career home runs.

Betting Probe Basketball

** FILE ** NBA official Tim Donaghy talks with another official during a timeout during a Washington Wizards New Jersey Nets basketball game, Tuesday, April 10, 2007 in Washington. The NBA acknowledged Friday the FBI is investigating Tim Donaghy for betting on games, including ones in which he officiated. (AP Photo/Haraz N. Ghanbari, file)

Home Invasion

In this photo provided by Muldoon Photography, the Petit is shown at the Hartford Club in October 2006 at Dr. Petit's installation as president of the Hartford County Medical Association. Dr. William Petit Jr. and his family, wife Jennifer Hawke-Petit, and their two daughters, Hayley, top left and Michaela. Bouquets of flowers began to arrive near Dr. William Petit Jr.'s home by early Monday evening as friends and neighbors in this quiet suburb responded to the stunning news _ his wife and two daughters were dead inside fire-damaged house, the apparent victims of a violent home invasion. (AP Photo/Muldoon Photography, Muldoon Photography) ** NO SALES **

BRITAIN GOLF BRITISH OPEN

Ireland's Padraig Harrington, left, pats runner up Sergio Garcia on the back during the presentation ceremony after winning the British Open Golf Championship at Carnoustie, Scotland, Sunday July 22, 2007. (AP Photo/Matt Dunham) ** EDITORIAL USE ONLY **