Polo-playing paper tycoon Peter Brant has had plenty of drama on his plate in recent weeks. His divorce from Stephanie Seymour has only been getting messier by the day. (Last week, the ex-supermodel got into a shoving match with one of Brant's bodyguards at the couple's Greenwich estate; over the weekend, she was issued a summons after another run-in with Brant's staff.) But that isn't the only crisis unfolding in the house of Brant. The convicted felon—Brant served 84 days in prison in 1990 after pleading guilty to tax fraud—is now watching Interview, the art/fashion mag founded by Andy Warhol and which Brant has controlled since the late 1980s, crumble to pieces. And it's all happened under the not-very-watchful eye of the man that Brant appointed to oversee his collection of magazines—his equally scandal-plagued son, Ryan Brant.

The Society of Memorial Sloan-Kettering Cancer Center hosted its second annual Spring Ball at the Plaza on Tuesday night. More than 350 people turned out for the NBC Universal-sponsored event, including NBC Universal president Jeff Zucker and his wife Caryn (left), Mort Zuckerman, Robert De Niro and Grace Hightower, Julia and David Koch, Tory Burch and Lyor Cohen, Hilary Geary and Wilbur Ross, Jonathan and Somers White Farkas, Shoshanna Lonstein Gruss, Peter and Jamee Gregory, Ginny and Tiki Barber, Sherman and Chris Meloni, Frank and Kathie Lee Gifford, Hoda Kotb, Peggy Siegal, Natalie Morales, Valesca Guerrand Hermes, Jennifer Creel, Renee Rockefeller, Alexandra Lebenthal and Jay Diamond, Danielle Ganek, Kimberly Kravis, Muffie Potter Aston, Hilary Gumbel, Dr. Harold Varmus, Dennis Basso, Heather Mnuchin, Anne Grauso, Sylvester and Gillian Miniter, Gigi Mortimer, Sara Ayres, Shafi Roepers, Leslie Jones, and LL Cool J. [PMc, Wireimage, NYSD]

Cartier celebrated its 100th anniversary in New York last night with a big bash inside its Fifth Avenue store. The celeb-heavy crowd included Elton John, Kate Hudson, Jessica Biel and Justin Timberlake, Anne Hathaway, Rachel Weisz, Demi Moore, Eva Mendez, Ashley Olsen, Zac Posen, Martha Stewart, Graydon Carter, Jeff Zucker, Robbie Myers, Patti Smith, Russell Simmons and Julie Henderson, Tory Burch, Thakoon Panichgul, Erin Fetherston, Nanette Lepore, Phillip Lim, Coco Rocha, Hilary Rhoda, Daniel Boulud, Eli Weisel, Bruce Weber, Henrik Lundqvist, Ingrid Sischy, Beth Rudin DeWoody, Cornelia Guest, Susan Fales-Hill, Marjorie Gubelmann, Thora Birch, Chiara Clemente, Alexis Bryan, Dylan Lauren, Kelly Klein, and Cartier chief Frederic De Narp. [PMc, Wireimage, WWD]

Saks CEO Steve Sadove was honored at a fundraising gala for the Fashion Institute of Technology last night at Cipriani 42nd Street. Sadove was presented with an award from Michael Bloomberg ("This is an evening I like to call Saks and the City!") and guests including FIT president Joyce Brown, Olivia Chantecaille, Jason Wu (left), Carolina Herrera, Tom Florio, Fern Mallis, Robbie Myers, Joe Zee, Amy Astley, Peter Som, Stacey Bendet Eisner, Susan Fales-Hill, Dan Peres, Bill Cunningham, Scott Harrison, Steven Kolb, Saks President Ronald Frasch and his wife Georgia, former State Comptroller Carl McCall, and actress Sarah Wynter. [PMc, Wireimage, NYO, FWD]

Yves Saint Laurent sponsored the Metropolitan Opera's 125th Anniversary Gala at Lincoln Center on Sunday night. YSL creative director Stefano Pilati was on hand to welcome the likes of Brooke Shields (left), Claire Danes, Claudia Schiffer, Kanye West and Amber Rose, Parker Posey, Kim Heirston, Mia and Patrick Demarchelier, Diane Kruger and Joshua Jackson, Richard Meier, Jeremy Irons, Willem Dafoe, Ingrid Sischy, Emily Mortimer and Alessandro Nivola, Sally Singer, Woody Allen, Stefano Tonchi, James Levine, Renée Fleming, Peter Martins, Julianna Margulies and Keith Lieberthal, Zoe Saldana, Daphne Guinness, Julie Macklowe, Plácido and Marta Domingo, Ginnifer Goodwin, Becki Newton, Patricia Clarkson, Austin Scarlett, and Met mega-donor Mercedes Bass. [PMc, Wireimage, Style.com, VF, FWD]

• Andrew Saffir's Cinema Society hosted a screening of The Curious Case of Benjamin Button at the Tribeca Grand last night. Attendees at the Pamella Roland and Svedka-sponsored screening and after-party at the Soho Grand included Kanye West, Spike Jonze, Olivia Palermo, Richard Meier, Mary-Kate and Ashley Olsen, Lauren Bush and David Lauren, Moby, Amy Sacco, Sandy Brant and Ingrid Sischy, Stefano Tonchi, Tommy Hilfiger and Dee Ocleppo, Bettina Zilkha, Charlotte Ronson, Cynthia Rowley and Bill Powers, Chace Crawford, Debbie Harry, Heather Matarazzo and Caroline Murphy, Judith Light, Kelly Bensimon, Karen Duffy, Liya Kebede, Rachel Roy, Liam McMullan, Ciara, and Danny Masterson. [PMc, Wireimage, The Daily]

A crowd of nearly 400 made their annual trip to the Bronx last Friday night for the New York Botanical Garden's 10th annual Winter Wonderland Ball. The black-and-white dinner, sponsored by Chanel, featured appearances by the likes of Cristina and Chris Cuomo, Nina Garcia, Marjorie Gubelmann, Byrdie Bell, Poppy Delevingne, Minnie Mortimer Gaghan, Steve and Christine Schwarzman, Dalia Oberlander, Gillian Hearst Simonds, Alex Kramer, Alexandra Lebenthal, Molly Sims, Holly Dunlap, Erin Fetherston, Margherita Missoni, Zani Gugelmann, Coco Rocha, Gillian and Sylvester Miniter, Bronson Van Wyck, Patrick McDonald, Stephen Knoll, Jessica Joffe, Jill Kargman, Lauren Remington Platt, Coralie Charriol Paul, Joe and Nazee Moinian, Kate Schelter, James and Whitney Fairchild, Lydia Fenet, Maggie Betts, Meredith Melling Burke, and Pamela Fiori. [PMc, Style.com, NYSD, The Daily]

Fashion Group International hosted its "Night of the Stars" gala at Cipriani Wall Street last night, where Kate Bosworth, Jennifer Lopez and Marc Anthony, Prince, Karl Lagerfeld, Ashley Olsen, Anna Wintour, Isaac Mizrahi, Donatella Versace, Allegra Versace, Georgina Chapman and Harvey Weinstein (left), Debra Messing, Jared Kushner and Ivanka Trump, Francisco Costa, André Leon Talley, Stephanie Seymour, Stefano Tonchi, Blake Lively, Penn Badgley, Alexander Wang, Bobbi Brown, Lindsay Price, Tom Florio, Christopher Bailey, Behnaz Sarafpour, Zani Gugelmann, Chanel Iman, Cindi Leive, Julianna Margulies, Christian Louboutin, Peter Som, Philippe Starck, Nina Garcia, Roopal Patel, Glenda Bailey, Tim Gunn, Jonathan Adler and Simon Doonan, Ruben Toledo and Isabel Toledo, Justine and Jeff Koons, Jonathan Newhouse, John Varvatos, Kimberly Guilfoyle, Patrick Demarchelier, Linda Fargo, Phillip Lim, Leigh Lezark and Max Minghella, Mary Alice Stephenson, and Mamie Gummer celebrated the industry. [InStyle, Wireimage, PMc]

♦ Soon-to-be-single Madonna premiered her directorial debut, Filth and Wisdom, at the Sunshine Theater on Monday night. On the red carpet and/or the after-party at the Thompson LES: Lindsay Lohan (left), Jerry Seinfeld, Naomi Watts and Liev Schreiber, Ann Dexter-Jones, David Blaine, Alan Cumming, America Ferrera, Brooke Shields, Marc Jacobs and Lorenzo Martone, Glenda Bailey, Jessica Alba and Cash Warren, Juliette Lewis, Jason Biggs, Jeremy Piven, Vanessa Williams, Becki Newton, Malin Akerman, Lake Bell, Max Minghella, Padma Lakshmi, Terry Richardson, Diane Kruger and Joshua Jackson, Joe Zee, Byrdie Bell, Fabiola Beracasa, Ferebee Bishop Taube, Zani Gugelmann, Katie Lee Joel, Beth Ostrosky, Eleanor Ylvisaker, Kelly Klein, Minnie Mortimer, Maggie Rizer, Chace Crawford, Amanda Cutter Brooks, Ingrid Sischy, Ross Bleckner, Nancy Jarecki, Derek Blasberg, Ed Westwick, Rose Byrne, Taylor Momsen, Debbie Bancroft, Terry Richardson, Bruce Weber, Guy Oseary, and Ali Wise and Jason Pomeranc. [The Daily, PMc, Wireimage, Style.com]

» Zac Posen showed the kind of pretty dresses that made him famous. What has also made him famous, of course, is his dazzling knack for networking, which was in full effect with a starry audience of Claire Danes and Hugh Dancy, Marisa Tomei, Leighton Meester, Venus and Serena Williams, Anna Wintour, André Leon Talley, Bernadette Peters, Diddy, Julian Schnabel, Bette Midler, Juliette Lewis, Kate Mara, Jada Pinkett Smith, Veronica Webb, Joy Bryant, Rachel Zoe, Ingrid Sischy, and Fern Mallis. [WSJ, Wireimage]

1) One of many Fashion Week kick-off events was the Agyness Deyn-hosted, Thierry Mugler-sponsored bash last night at Christie's, where Chloë Sevigny, Henry Holland, Kelly Osbourne, Peaches Geldof, Yigal Azrouël, Kelly Cutrone, Paul Sevigny, Kate Schelter, Jennifer Creel, Holly Dunlap, Genevieve Jones, Jen Cohen, Dori Cooperman, Ellen Von Unwerth, Padma Lakshmi, and Mary Alice Stephenson previewed the auction house's fall sales of post-war and contemporary art, impressionist and modern art, and fashion. [The Daily, Wireimage, NYO]

1) The ACRIA benefit at photographer Steven Klein's Bridgehampton farm, sponsored by Calvin Klein Collection and Vanity Fair, invited guests for "Cocktails at Sunset." A boldface-heavy crowd including Bruce Weber, Jessica Stam, Donna Karan, Daphne Guinness, Rachel Zoe, Elizabeth Saltzman, Francisco Costa, Kelly Bensimon, Padma Lakshmi (above right), Carol Alt, Calvin Klein, Joy Bryant, Karolina Kurkova, Olivia Chantecaille, Mary Alice Stephenson, Anh Duong, Sessa von Richthofen, Zani Gugelmann, Jackie Astier, Lucy Sykes and Euan Rellie, and committee member/host Andrew Saffir (above left) ate mini-burgers and tater tots, and bid on a Steven Klein print of Madonna from W magazine. [FWD/Style.com]

Ingrid Sischy, the former editor-in-chief of Interview, is still alive, in case you were concerned. She may have been ousted by the mag's owner, Peter Brant, back in January, after he acquired (ex-wife) Sandy's shares in the company. But just in case you might have thought she'd descended into a pit of depression or something, she was kind enough to check in with Page Six today to reveal she and (now girlfriend) Sandy are "enjoying their new jobs," are "soaking up the sun," and "rubbing shoulders with movie stars in Cannes." Lest that make her seem superficial, she'd also like you to know she's been thinking of the "plight of Chinese earthquake survivors." From Elton John's villa in Mexico.

Former Interview editor Ingrid Sischy profiles former fashion designer Calvin Klein for the increasingly dated Vanity Fair, at great length. It's not so much a feature as a biography, without any stunning revelations-except that the designer, whose 1980s billboards put gay iconography in Times Square, is one of the world's last remaining bisexuals. "That was a period of time when sex was everywhere, as were drugs. Not for everyone, of course. I've experienced-and I've said it before-a lot of my fantasies. I've experienced sex with men, with women. I've fallen in love with women. I've married women. And I have a family." Oh, and, in one of the moments he wasn't busy marrying women, Klein may have succumbed to the charms of Romeo, one of the models whom photographer Bruce Weber turned into a pin-up. Photograph: Calvin Klein in a 1979 ad for his label.

Big changes at the magazine set up by Andy Warhol to turn his downtown friends into celebrities: in place of a frumpy lesbian, Interview is now to be led by a gay fashion template. From John Koblin's profile of Christopher Bollen, the magazine's new editor: "In crisp white oxford-cloth shirt by Adam Kimmel ("He's my favorite designer"), gray Karl Lagerfeld sweater vest, Dior navy cords and Margiela brown shoes, he was an advertiser's wet dream." One didn't think it possible: the new Interview may be even more self-loving than the old.[New York Observer]

Ingrid Sischy

When we correctly broke the story that Interview Editor-In-Chief Ingrid Sischy was leaving, the mag's PR flacks were like "Naw!" and we were like "okay!" but then they were like "Um actually yeah!" and we were like "ad;flk! told you so!" Also, we didn't really delve into the whole hot lesbian affair side of things. Too much integrity/class! Post's Page Six wasn't afraid to go there. From today, "[Newly sole Interview owner] PETER Brant might as well have told Ingrid Sischy, "And don't let the door hit you on your way out," after he bought out his ex-wife's half of Interview magazine last week. Sischy edited Interview for 18 years, working closely with the publisher, her longtime girlfriend, Sandy Brant. But Peter sounded like he was still wounded that his wife left him for a woman."

WWD is reporting that editor Ingrid Sischy is leaving Interview magazine. Funny that, because 14 days ago, when we reported the rumor that Sischy was on her way out, whopper-master and Interview spokeslady Rachna Shah said this to the Observer: "The Gawker item is absolutely not true." WWD got a tetch hissy with us via email. "You guys jumped the gun on that," they wrote. Goodness. WWD's long piece today on Sischy's life and times at Andy Warhol's Interview doesn't mention their original story. To be fair, it's possible that Shah's bosses might have given the flack false information. Not uncommon, but always uncommonly silly. Whoops! The renowned Sischy is leaving the paper after a 23-year tenure, citing partner Sandra Brant's decision to sell her interest in Brant Publications, Interview's parent company. After the jump, Interview's press release on Sischy's departure. At least, that's what we think it is. UPDATE: From a partner at consulting firm HLGroup: "Neither the client nor the publicist involved passed on incorrect information. When the question was asked 14 days ago, Ingrid Sischy was in fact on holiday in South Africa. She had not resigned, nor was her intention at that time to resign."

Cancel those ends of days-Ingrid Sischy isn't leaving Interview, she's just on vacation with Sir Elton John. In South Africa. Naturally! The magazine's executive editor Brad Goldfarb tells us it's a "long-planned" annual trip and that he's been working with Sischy by phone all week. She'll be "back at her desk Monday," he said. Phew! Also, never mind!

Is this the end of days? We're hearing that Interview editrix Ingrid Sischy left the title yesterday. She was a downtown publishing fixture, if a minor one, known mainly for her famous friends from an earlier New York era, like Robert Mapplethorpe, Calvin Klein, Elton John and the Versaces. True to the mission of the magazine, she interviewed them at length, often at excessive length. More background, after the jump.