We’ll always have “King Arthur.”

Keira Knightley has refused to allow any enhancement of her cleavage on publicity photos for her upcoming movie, “The Duchess,” Britain’s Daily Mail reports.

Studio heads reportedly want to enlarge Knightley’s bosom in the photos, but the actress, 23, put her foot down.

“She has insisted that her figure stay in its natural state,” an insider said. “She is proud of her body and doesn’t want it altered.”

This isn’t the first time Knightley has faced this dilemma. The actress drew negative attention in 2004 with her larger-than-usual breasts in publicity stills for “King Arthur.”

“Those things certainly weren’t mine,” Fox News quoted her as saying in 2006. According to Knightley, the studio marketing team was behind her suddenly C-cup breasts, but gave her final approval on the photos.

“I was like, ‘OK, fine. I honestly don’t give a s—,’” she recalled.

Knightley has expressed dissatisfaction with her small bustline. “I would love to have [breasts]!” she told Britain’s GMTV last year, adding, “I’m never going to get [them]. I’m naturally who I am.”

While she’s a fan of going au naturale in “The Duchess,” Knightley looks “flat-chested in the whole movie,” the source says.

Sienna Miller says Keira Knightley is “ravishing”.

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Miller — who stars alongside Knightley in new flick The Edge Of Love — reckons the pint-sized star is one of the most beautiful women in Hollywood.<br>

Sienna says, “Keira is just ravishing in every way, a goddess, and I adore her.<br>

“There’s no kind of rivalry. It’s Keira Knightley, you bite the bullet, you just deal with it.”<br>

Sienna, 26, also said there is no way she can compete with Keira in the looks department — no matter how much make-up she applies.<br>

She adds to Britain’s OK! magazine, “There’s not enough make-up that can put you anywhere near that level.<br>

“But she is such a cool chick and she is so bright and lovely.”

Prepare yourself: there is less than two months before the start of the 2008 Toronto International Film Festival, and as the countdown begins so does the hype.

To whet your appetite, the festival announced a bunch of new movies on Thursday. They include:

• A Gala Presentation of Secret Life of Bees (based on the smash hit novel) which follows a troubled teenage girl (played by Dakota Fanning) as she “finds solace in (the) mesmerizing world of beekeeping.” Also stars Paul Bettany, Alicia Keys, Jennifer Hudson and Queen Latifah.

• A Gala Presentation of The Duchess, starring Keira Knightley and Ralph Fiennes, about the Duchess of Devonshire, Georgiana Spencer.

• The world premiere of Ghost Town, starring Ricky Gervais as a man who can see ghosts. As long as it’s not Ghost Dad…

• The highly anticipated world premiere of Larry Charles and Bill Maher’s scathing documentary Religulous. Picketing at the premiere is not out of the question.

• The North American premiere of art house fave Wong Kar-wai’s latest, Ashes of Time Redux.

• Director Guy Ritchie’s comeback vehicle, RocknRolla, which fans hope will be more Snatch and less Swept Away. It stars Gerard Butler, Tom Wilkinson, and Jeremy Piven.

• In the Masters program, look for films from Swedish filmmaker Jan Troell (Everlasting Moments) and Kiyoshi Kurosawa, whose film Tokyo Sonata — which won the Un Certain Regard Jury Prize at this year’s Cannes — will have its North American premiere.

• The Contemporary World Cinema program will offer films from Denmark, Greece, Turkey, Germany, Ethiopia, Iceland, China, and other countries around the world.