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]

Shoshanna Gruss—socialite, designer, ex-girlfriend of Jerry, and wife of Josh—turns 34 today. Former investment banker and U.S. Ambassador to France, Felix Rohatyn, is 81. Time Inc. chief Ann Moore is turning 59. Former News Corp. exec Peter Chernin is 57. Interior designer/Target fave Thomas O'Brien is turning 48. Actress Annette Bening is 51. Melanie Brown ("Scary Spice") is turning 34. Noel Gallagher of Oasis is turning 42. Fellow Brit Rupert Everett is 50. Brazilian model Ana Beatriz Barros turns 27. Lisa Whelchel of Facts of Life fame is 46. And La Toya Jackson is celebrating her 53rd birthday today. Weekend birthdays below.

What do party fixtures Andrew Saffir and Daniel Benedict have planned this weekend? Glad you asked! "Memorial Day weekend we divide our time between the South of France for the fin of the Cannes Film Festival and the fin of an all-American East Hampton holiday weekend. While I'd like to say we will be going to an endless array of barbecues, clambakes and Summer kick-off parties, we're more likely to be asleep on the beach nursing our exhaustion from eleven consecutive 3 a.m. nights of rosé and Bellini-soaked parties and trop de Croisette carrousing." [FWD]

Free Arts NYC hosted its 10th annual art and photography auction last night. Attendees at the Calvin Klein Collection-sponsored event, which was hosted by Kevin Bacon and Michelle Monaghan, included Calvin Klein's Francisco Costa and Italo Zucchelli, Amy Sacco, Glenda Bailey, Julia Restoin Roitfeld, Hilary Rhoda, Ed Westwick, Lindsay Price, Karolina Kurkova, Yvonne Force Villareal, Zani Gugelmann, Kimberly Guilfoyle and Eric Villency, Thom Browne, Molly Sims, Andrew Saffir, Beth Ostrosky, Erin Fetherston, Mary Alice Stephenson, David Granger, Helen Lee Schifter, Glenn O'Brien, Kate Schelter, Richard Chai, Jeremy Kost, Mickey Boardman, Kathryn Neale, Ross Bleckner, Simon de Pury, and Andrew Fry. [PMc, Wireimage, FWD, SF]

Jay McInerney's latest book, How It Ended, was feted at the 21 Club on Wednesday night. On hand for the occasion: McInerney's wife, Anne Hearst, Brooke Shields, Candace Bushnell and Charles Askegaard, Gay and Nan Talese, Morgan Entrekin, Nina Garcia, Pamela Fiori, Bob Colacello, Richard Johnson and Sessa Von Richthofen, Peggy Siegal, Muffie Potter Aston, Bettina Zilkha, Cornelia Guest, Debbie Bancroft, Valesca Guerrand-Hermes, Nina Griscom, Somers White Farkas, Patrick McMullan, Robert Couturier, George Farias, Tatiana and Campion Platt, Kimberly Rockefeller, Pamela Gross, Harry Slatkin, Dana Hammond, Harry Benson, and Deborah Norville. [PMc, VF, P6]

Michelle Obama was the main attraction at Time magazine's sixth annual 100 "most influential" ceremony at Lincoln Center last night. She was joined by a predictably massive group of A-listers, including Oprah, Harvey Weinstein, Mort Zuckerman, Steve Schwarzman, Jeff Bewkes, Diane Sawyer, Barbara Walters, Whoopi Goldberg, Joy Behar, Carine Roitfeld, Gayle King, Stella McCartney, Claire Danes and Hugh Dancy, Kate Hudson, Liv Tyler, Jay Leno, Lorne Michaels, Jimmy Fallon and Nancy Juvonen, Charlie Rose, David Lauren and Lauren Bush, Ann Coulter, Suze Orman, Arianna Huffington, Kate Betts, Andy Serwer, Paul Krugman, Vivi Nevo and Ziyi Zhang, Andrea Mitchell, Chris Matthews ...

Chanel hosted a dinner to celebrate the Tribeca Film Festival at Odeon last night, where the guests included Adrien Brody, Robert De Niro and Grace Hightower, Craig Hatkoff and Jane Rosenthal (with daughter Juliana), Moby, Debra Messing, Fabiola Beracasa, Julia Restoin Roitfeld, Mary-Kate Olsen, Diane Kruger, Celerie Kemble, Kerry Washington, Viola Davis, Matthew Modine, Angela Lindvall, Heidi Mount, Poppy Delevigne, Alexis Bledel, Danielle Steele (with daughters Victoria and Vanessa Traina), Dree Hemingway, Drena De Niro and Carlos Rodriguez, Henry Cavill, Melissa Leo, Molly Shannon, and Grace, Mamie, and Louisa Gummer. [PMc, Wireimage, Getty, FWD]

Graydon Carter, Robert De Niro, and Ron Perelman hosted a Vanity Fair-sponsored dinner at the State Supreme Court House last night to celebrate the opening of the Tribeca Film Festival. They were joined by Carter and De Niro's wives (Anna Scott Carter and Grace Hightower) and Tribeca Film Fest co-founders Craig Hatkoff and Jane Rosenthal, as well as a long list of guests, including Bono and Ali Hewson, Kanye West, Diane von Furstenberg, Jared Kushner and Ivanka Trump, Tory Burch and Lyor Cohen, André Leon Talley, Fran Lebowitz, Spike Lee ... (continued)

The New Yorkers for Children benefit attracted a predictably star-studded crowd to the Mandarin Oriental on Wednesday night. In addition to Zac Posen and Coco Rocha in matching ensembles, guests included Josh Hartnett, Emmy Rossum, Andre Balazs, Christine and Steve Schwarzman, Rachel Roy, Rachel Zoe, Topper and Tinsley Mortimer, Lucy Sykes Rellie and husband Euan Rellie, Andres and Lauren Santo Domingo, Alexis Bryan, Fabiola Beracasa, Gillian Hearst Simonds, Diane Kruger and Joshua Jackson, Gillian and Sylvester Miniter, Olivia Palermo ...

It was Drew Barrymore's big night at the Ziegfeld yesterday when the new HBO movie, Grey Gardens, had its premiere. On hand for the occasion and afterparty at the Pierre: Drew's co-stars Jessica Lange and Jeanne Tripplehorn, as well as guests like Justin Long (left), Jimmy Fallon, Rudy and Judi Giuliani, Stanley Tucci, Steve Buscemi, Gay Talese, Arthur Sulzberger, Dan Abrams, Roger Friedman, Hilary Rhoda, Marc Jacobs and Lorenzo Martone, Peter Som, Jason Wu, Erin Fetherston, Kristin Wiig, Tony Sirico, Robert F. Kennedy Jr., Aerin Lauder, Albert Maysles, Ashleigh Banfield and Howard Gould, Monet Mazur, Debbie Harry, Selita Eubanks, the Beastie Boys' Mike D, Ad-Roc, and MCA, Aleksandra Baryshnikov, BD Wong, and the film's director, Michael Sucsy. [PMc, Wireimage, Getty, LAT, FWD]

Andrew Saffir's Cinema Society hosted a screening of The Mysteries of Pittsburgh last night at the Landmark Sunshine Theater. Guests at the screening included the film's stars Sienna Miller and Peter Sarsgaard (left), along with Maggie Gyllenhaal, Anna Wintour, Russell Simmons and Julie Henderson, Gilles Bensimon, Rachel Roy, Amy Sacco, Rachel Zoe, Beth Ostrosky, Olivia Palermo and Johannes Huebl, Jessica Joffe, Zoe Kravitz, Stefano Tonchi, Marina Rust Connor, Jennifer Creel, Richard Johnson and Sessa von Richchofen, Carlos Souza, Marcus Schenkenberg, Rosanna Scotto, Emma Roberts, Brittny Gastineau, Irina Pantaeva, Kiera Chaplin, Lisa Anastos, Jackie Astier, Kim Heirston, Nur Khan, Gilles Mendel, Bobby Kennedy III, Kelly Killoren Bensimon, Chris Diamantopoulos, and Olympic fencers Tim Morehouse and Jason Rogers. [PMc, Wireimage, VF, Paper, FWD]

Filmmaker and Transcendental Meditation enthusiast David Lynch brought Paul McCartney and Ringo Starr together for the first time in years as part of the Change Begins Within benefit at Radio City Music Hall on Saturday night. A slew of celebrity performers and guests were on hand for the occasion, including Sheryl Crow, Laura Dern, and Ben Harper (with Ringo, left), as well as Jerry Seinfeld, Yoko Ono, John McEnroe, Martin Scorsese, Howard Stern and Beth Ostrosky, Matthew Broderick, Moby, Jennifer Aniston, Desiree Gruber and Kyle MacLachlan, Isabella Rossellini, David Arquette, Michael J. Fox, Robin Quivers, Eddie Vedder, Jason Bateman, Barbara Bach, Bettye LaVette, and Mike Love. [Wireimage, Getty, VF, NYO]

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]

A recap of the last few days in benefits and parties—including the Frick Collection's Young Fellows Ball, above—is after the jump.

amfAR kicked off Fashion Week with a gala at Cipriani last night, where the long list of attendees included Donna Karan, Mary J. Blige (left), Anna Wintour, Calvin Klein, Rachel Zoe, Julia Restoin Roitfeld, Liza Minnelli, Candy Pratts Price, Robbie Myers, Jessica Stam, Lily Donaldson, Kenneth Cole, Stefano Tonchi, John Demsey, Stacy Bendet, Andrew Saffir and Daniel Benedict, Lisa Dennison, Terence Koh, Vito Schnabel, Noemi Lenoire, Harry Belafonte, Mary Alice Stephenson, Jennifer Creel, Natasha Richardson, Stanley Tucci, Taylor Momsen, Maggie Rizer, Doutzen Kroes, Robert Verdi, Mario Cantone, Eliza Dushku, Kipton Cronkite, Derek Blasberg, and Howard and Cindy Rachofsky. [PMc, Wireimage, WWD, NYO]

GQ held its second annual "Best New Menswear Designer in America" competition last night in conjunction witht he CFDA. Finalists like Andre "3000" Benjamin, David Mullen, Alex Carleton, Robert Geller, Sam Shipley, Jeff Halmos, and Yigal Azrouel were joined by guests like Tommy Hilfiger, Fern Mallis (left), Thom Browne, Jim Nelson, Kelly Cutrone, Phillip Lim, Derek Lam, Peter Som, Rory Tahari, Chase Crawford, Steven Kolb, Ally Hilfiger, Fonzworth Bentley, David Chu, Ryan Leslie, David Lauren, Katie Lee Joel, Glenn O'Brien, Steven Alan, Calvin Klein mens creative director Italo Zucchelli, GQ publisher Peter Hunsinger, and last year's winner, Daiki Suzuki. [PMc, NYO, FWD]

Lycée Français de New York honored Dior president Sidney Toledano at its 10th annual gala at 7 World Trade Center on Friday night. The event, which was co-chaired in part by by Olivier Sarkozy and his wife Charlotte, attracted Eric and Sandra Ripert (left), Robbie Myers, Bernard Aidan, Bettina Zilkha, Catherine Malandrino Glenda Bailey, Cathy Horyn, Kassy and Liya Kebede, Delphine and Reed Krakoff, Susan Fales-Hill, Yannick Noah, Virginia Smith, Alejandra and Jeffrey Kluger, Stacey Bronfman, Assouline and Martine Prosper, Fabrizio and Maryane Freda, and Veronica Bulgari. [PMc, FWD, WWD, NYSD]

Daniel Benedict is one of the city's most frequently photographed professional party-goers: You don't appear 955 times on Patrick McMullan if you sit at home at night and watch trashy reality TV on VH1. (That's what a DVR is for.) Daniel also has a serious affection for self-tanning lotion, at least judging by the number of people who email us to comment on the shade of Daniel's skin. But have you ever considered how hard it must be to achieve just the right shade? It's a delicate balancing act. Don't put enough on and you look sickly; put on too much and your fellow party guests are wondering aloud if lobster is on the menu. But we're here to help. You can now hold up the Daniel Benedict Self-Tanning Color Swatch while you're looking in the mirror to determine if you're safe, or if you've clearly gone way too far. You're welcome!

The Villency Emerging Fashion Program hosted a dinner at Bobo on Wednesday night to honor Elise Overland and threeASFOUR designers Adi, Ange and Gabi. Eric Villency and wife Kimberly Guilfoyle welcomed a collection of fashion and social fixtures, including Zani Gugelmann (left), Byrdie Bell, Daniel Benedict and Andrew Saffir, Ann Dexter-Jones, Richard Johnson, Hope Atherton, Kate Schelter, Maggie Betts, Horacio Silva, Jessica Joffe, Glenn O'Brien, Ferebee Bishop, Gigi Stone, Tom Sachs, Serena Merriman, Poppy de Villeneuve, and Stephanie LaCava. [PMc, FWD, VF, GoaG]

Richard Johnson and Jason Binn celebrated their birthdays with a joint bash at Da Silvano on Monday night, where they were joined by their wives, Sessa von Richthofen and Haley Binn, along with guests like Donny Deutsch, Jared Kushner, Brooke Shields and Chris Henchy, Silvano and Marisa Marchetto, Ann Dexter-Jones, Lauren and Charlie Walk, Daniel Benedict, Jane and Richie Notar, Jerry Della Femina and Judy Licht, Beth Ostrosky, Amy Nederlander, Alina Cho, jewelry exec Benny Shabtai, Sharon Dorram, film producer Meryl Poster, and Gigi Stone of ABC News. [PMc, GoaG]