The Cinema Society and Details magazine hosted a screening of The Hangover last night at the Tribeca Grand, which was followed by an afterparty at the Soho Grand. Details editor Dan Peres, Cinema Society's Andrew Saffir, and Bradley Cooper and Justin Bartha, who both appear in the film, welcomed Rachel Roy, Amy Sacco (left), Nicole Miller, Will Arnett, Zach Braff, Gerard Butler, Molly Sims, Chris Meloni, Caroline Rhea, Alan Cumming, Shoshanna Lonstein Gruss, Albert Hammond Jr., Jill Hennessy, Jesse Eisenberg, Hilary Rhoda, Dan Abrams, Danny Masterson, Byrdie Bell, Kelly Bensimon, Rob and Marisol Thomas, Caroline Winberg, and Doutzen Kroes, Alexandra Richards, and Paula Abdul. [PMC, WWD, Wireimage, VF]

Jill Kargman's new novel, The Ex-Mrs. Hedgefund, was written before the economy came crashing down, which explains why if you pick up a copy—it came out last week—you may feel like you've been transported back in time to the middle of 2006, when everyone walking down Park Avenue was full of optimism and no one had any problem spending $50,000 on a two-year-old's birthday party. Things have changed a bit since then, although Kargman isn't allowing the unfortunate timing of her novel derail her PR campaign. Quite the opposite, in fact: Her book party this evening will feature a blood-red cocktail called the "Nightmare On Wall Street," and she's using the financial crisis to detail how some of the city's richest women have been coping with the downturn.

• Kimora Lee Simmons and Djimon Hounsou are married. Sort of. The couple reportedly traveled to Africa last summer to tie the knot in a secret ceremony, but the marriage isn't valid in the US since Kimora was still married to Russell Simmons at the time. But Djimon went shopping for an engagement ring last week, so they'll sort it all out soon enough. [NYDN]
• An escort who claims she serviced Eliot Spitzer has lots of details to share about the encounter, if you're feeling brave this morning. Among other things, she claims he liked to choke her during sex. [R&M]
• Jeffrey Toobin doesn't believe that he's the father of Casey Greenfield's baby, although she's asking for a paternity test to know for sure. [R&M]
• Sarah Silverman and Jimmy Kimmel have split up. Again. [People]

Author Jill Kargman (perhaps you know her previous tomes, The Right Address and Wolves in Chic Clothing?) has a new book called Momzillas, and it's all about those awful, awful moms who do things like throw huge elaborate birthday parties for their 2-year-olds and are just as competitive about their kids as they were about making Harvard Law Review. Fortunately, Ms. Kargman, who is 32 and married to a software company president, is taking a stand against these terrible people. For instance, she doesn't have an "army of nannies"; her nanny only works 9 to 5. And even though her dad, Arie Kopelman, is president of Chanel and her mom, Coco, sits on a gajillion boards, she's really grounded.