"MAD MEN" STAR Christina Hendricks (secretary Joan Holloway) is going to be making a lot of men mad.

TV Guide reports she will marry Geoffrey Arend ("Trust Me") Oct. 11 in Manhattan.

"It's exciting," Hendricks said. "I'm wearing a beautiful Carolina Herrera dream gown."

It's exciting for her? Few women on TV can fill out a gown like Hendricks.

Arend will wear a Brooks Brothers tuxedo to the small ceremony, but no one will notice.

* Hopefully Hendricks and Arend will have better luck in wedlock than Usher and Tameka Raymond.

Usher said he and his wife were separated for nearly a year before he filed for divorce, calling the marriage in court records, "irretrievably broken."

Which sounds much worse than irreconcilable differences.

The pair married in August 2007 but split in July 2008.

The Raymonds have two sons: 1 1/2-year-old Usher Raymond V and 6-month-old Naviyd Ely Raymond. Tameka, Usher's former stylist, has three children from a previous marriage.

The divorce petition says there is "no reasonable hope of reconciliation" between Usher, 30, and Tameka, 38.

Usher is seeking joint custody of the children.

Tameka is contesting the divorce and said through her attorney that she has been a "faithful wife and loving mother" during the marriage.

Being faithful is probably a more important part of the marriage when you live together.

The Cook and the Book

To celebrate the new Meryl Streep-Amy Adams movie, "Julie & Julia," Tattle has copies of the book "Julie & Julia: 365 Days, 524 Recipes, 1 Tiny Apartment Kitchen," autographed by author Julie Powell, for five lucky winners.

Powell, the real "Julie," will be signing copies of the book tomorrow from noon to 1 p.m. at the Center City Borders, 1 S. Broad St.

For a chance to win, e-mail tattlecontest@phillynews.com by Friday at noon with your name, address, phone number AND the words I want to cook like Julia Child.

Only one entry per e-mail address. The five winners will be picked at random. Good luck.

Tattbits

* Leonardo Di Caprio is putting on his poker face.

The Hollywood Reporter says Leo is attached to star in a film about Costa Rica-based online casinos.

Paramount picked up an untitled pitch for the film from writers Brian Koppelman and David Levien, who wrote "Ocean's Thirteen" and "Rounders."

* The Hollywood Reporter says Natalie Portman will star in "Black Swan," from director Darren Aronofsky ("The Wrestler").

Portman will play a veteran ballerina who finds herself competing with a rival dancer.

Is this the second coming of "The Turning Point"? No, the script is a supernatural thriller.

A supernatural ballet thriller.

* The publisher of "Harry Potter" says it intends to fight a lawsuit alleging that author J.K. Rowling stole the idea for the books.

A statement from Bloomsbury Publishing says the suit alleges Rowling took the idea from author Adrian Jacobs. Jacobs has since died but his estate is suing.

Bloomsbury said yesterday that such a plagiarism allegation is "unfounded, unsubstantiated and untrue" and that Rowling had "never heard of Adrian Jacobs nor seen, read, or heard of his book."

Bloomsbury says Jacobs' book - "Willy the Wizard" - had limited distribution.

Rowling's books, on the other hand, had unlimited distribution.

* Elle magazine says London police are investigating allegations that jewelry was stolen after an Elle fashion shoot featuring Lindsay Lohan.

Police confirmed that a necklace and earrings worth about $411,000 were missing from a studio in north London in early June.

A police spokesman said no arrests have been made. Elle said in a statement yesterday it had no reason to believe that Lindsay was in any way linked to the alleged theft.

Lindsay, however, is hoping police will investigate who stole her career.

* The incredibly annoying Spencer and Heidi Pratt, deservedly mocked in a "Today" interview by hero weatherman Al Roker, have told Life & Style, that they would graciously return to "I'm a Celebrity . . . Get Me Out of Here" for "$1 million each an episode."

Roker really should have taken these two clowns over his knee.

After returning from the jungle, Spencer said the pair holed up at the Four Seasons Hotel.

"We took multiple baths and got manicures, pedicures and facials," Spencer said.

If ever two people deserved facials . . .

* Now that David Letterman has officially apologized to Sarah Palin, Bristol and Willow, and Gov. Palin has officially accepted the apology, the culture wars may return to their regularly scheduled battle between former Miss California Carrie Prejean and the Miss USA pageant.

Said Palin of Letterman's apology: "Of course it's accepted on behalf of young women, like my daughters, who hope men who 'joke' about public displays of sexual exploitation of girls will soon evolve."

Sure, now she believes in evolution. *

Daily News wire services contributed to this report.

Send e-mail to gensleh@phillynews.com.