Renee Zellweger walking through JFK to catch a flight to Spain with Bradley Cooper... Mickey Rourke walking in the West Village ... Michelle Williams getting ice cream with daughter Matilda Rose at Blue Marble in Brooklyn ... Julia Roberts on the set of Eat, Pray, Love set in Brooklyn ... Famke Janssen eating outside at Da Silvano ... Uma Thurman walking in the meatpacking district ... Kate Hudson watching a game at Yankees Stadium with Matt Franco, Kurt Russell, and Goldie Hawn ... Tracy Morgan sitting on a stoop with his dogs in SoHo ... Drew Barrymore on the set of her new movie in Central Park ... Teri Hatcher taking a photo of a friend on the street ... Justin Bartha leaving Ashley Olsen's townhouse in the Village ... Mischa Barton taking her dogs for a walk in SoHo ... Julia Stiles walking downtown ... and Yoko Ono leaving Da Silvano with Sean Lennon.

• Ashton Kutcher and Demi Moore suffered a big scare when the plane they were on was forced to make an emergency landing in Las Vegas shortly after take-off. Fortunately, neither actor was injured and they could return to tweeting within minutes of the incident. [People]
• Leonardo DiCaprio appears to be moving on now that he's no longer with Bar Refaeli: He was seen with SI model Anne Vyalitsyna in Ibiza. [P6]
• Bethenny Frankel was seen in the bathroom of a restaurant with a pregnancy test, so it appears she's looking to reproduce. You've been warned. [P6]

• Cameron Douglas, the son of Michael Douglas, was arrested at the Gansevoort Hotel last week. The crime? He had about $18,000 worth of meth with him, which he was planning to sell. [NYP]
• Mischa Barton's return to the party scene this past weekend wasn't entirely drama-free. She got upset and talked "frantically" as she recounted an episode with a stalker. Then she had a drink spilled on her when she went to a party at the Cooper Square Hotel. [P6]
• So much for Bethenny Frankel's plans to star in her own reality show. She says she'll be back for the third season of Real Housewives of NYC. [People]

Mel Gibson announces his next big movie role, and it's a strange one. The Green Lantern movie narrows its potential leads down to three curious choices, and little beaver Jon Heder has landed a TV show on cable.

Liv Tyler leaving lunch at Sant Ambroeus on West 4th Street ... Liev Schreiber riding his Vespa downtown ... Anne Hathaway walking in SoHo ... Whitney Port shopping in the West Village ... Hilary Swank and Jeffrey Dean Morgan filming scenes for The Resident in Brooklyn ... Kiefer Sutherland walking in the West Village ... Courtney Love walking by herself near Gramercy Park ... Heidi Klum shopping with her mom and kids in the meatpacking district ... Emilie de Ravin walking on the Lower East Side ... Rihanna hanging out at East Side Ink in the East Village ... Renee Zellweger and Bradley Cooper hailing a cab outside Antonucci on East 81st Street.

Bradley Cooper and Renee Zellweger are so doing it, Kevin Jonas is engaged, Hayden Panetierre is totally naked in her new movie, Tinsley Mortimer is dating a German aristocrat and Mischa Barton gets kicked out of a London nightclub's bathroom.

• First Michael Jackson dies, and now this? It seems it's over for Tinsley Mortimer and her husband, Topper, now that Tinz is in London where she's taken up with a German prince named Casimir Wittgenstein-Sayn. Why the change of heart? For starters, "Cassie" makes more money than Topper and owns a castle in Germany. Even more importantly, marrying him would finally make the Tinz a princess. And opportunities like that don't come along every day, naturally. [P6, DM]
• Bradley Cooper denied rumors the other day that he's been dating Jennifer Aniston. One possible reason for that: It looks like he's involved with Renee Zellweger instead. [P6]
• Kevin Jonas is engaged. He's one of those annoying Jonas Brothers, in case you're not up to speed on your annoying teen pop stars. [People]
• A few years ago, someone walking through the meatpacking district would have complained about the stench of rotting meat. Nowadays? They're whining that Diane von Furstenberg's store is pumping perfume into the air. [P6]

Meghan McCain demands the "really hot" Hillary Duff to play her in the movie about her life, Lindsay Lohan is paid big bucks to party, Farrah is laid to rest, Michael Jackson's photographer speaks and Courtney Love suffers from malnutrition.

Megan Fox and Shia LaBeouf might be boning, Whitney Port has a new fake boyfriend, Britney Spears dyed her hair and is sporting a ring, Bradley Cooper put Jennifer Aniston in the friend zone and Leo DiCaprio's shoes got stolen.

• A second autopsy was performed on Michael Jackson over the weekend just as details from the first were revealed: Jackson was just 112 pounds when he died and his "emaciated body was riddled with needle marks and scars, and his head was virtually bald." In the meantime, his doctor, Conrad Murray, has denied giving Jackson any drugs right before his death and says he found a faint pulse when he first discovered him. Jackson's parents say they plan to fight for custody of Jackson's kids and for control of his estate. And plenty of people came out to celebrate Jackson's life at a couple of BET parties this weekend. And now you're all caught up. [NYP, LAT, WP, NYDN]
• Poor Jen Aniston. One minute she's happy and relaxed and supposedly dating Bradley Cooper and now Cooper says they're just "friends." [P6, NYDN]

Can Farrah Fawcett's jailed son attend her funeral? Is Coolio's next fantastic voyage to jail? Does Johnny Depp watch his own movies? Will Real Housewives of Dirty Jerz (and Kelly Bensimon!) ever go away? How's Walter Cronkite? Let's find out:

More than 1,200 people descended on Skylight Studios on Wednesday night for the Whitney's annual Art Party. Sponsored by BCBG Max Azria, the designer (left, with co-host Camilla Belle) and wife Lubov welcomed the likes of Lake Bell, Lydia Hearst, Gretchen Mol, Hilary Rhoda, Calvin Klein, Jason Wu, Tinsley Mortimer, Genevieve Jones, Fabiola Beracasa, Ali Larter, Lindsay Price, Stacey Bendet, Olivia Palermo, Meredith Melling Burke, Alexis Bryan Morgan, Ivanka Trump, Byrdie Bell, Bradley Cooper, Alexis Bledel, Selita Ebanks, Hana Soukupova, Claire Bernard, Amber Tamblyn, Adam Lippes, Alexandra Richards, Anne Slowey, Lydia Fenet, Roopal Patel, Gilles Mendel, Lela Rose, Brooklyn Decker, Zani Gugelmann, Allison Aston, Esteban Cortazar, Jessica Joffee, at least two members of the Willis clan (Tallulah and Scout), and the man who runs the show at Whitney, Adam Weinberg. [PMc, Wireimage, FWD, WWD, VF, Style.com, ArtInfo]

• Cynthia Nixon and longtime girlfriend Christine Marinoni have gotten engaged. The couple announced the news at the Love, Peace and Marriage Equality rally over the weekend. [OK!, ET]
• Mariah Carey reportedly threw a fit in Cannes on Friday evening when the director of her new movie had the audacity to show up late to the premiere, thus denying her precious time on the red carpet. [NYDN]
• Also in Cannes: Giuseppe Cipriani was seen making out with Tara Reid; and Kirsten Dunst missed the party she was supposed to be hosting because she missed her flight. [NYDN, Mirror]
• Kelly Bensimon is telling friends she regrets joining the Real Housewives cast since appearing on the show has "ruined her socially." [P6]
• Brooke Shields says her mother was checked out of her nursing home last week by a National Enquirer reporter looking for a scoop. [People]

• Is Madonna leaning on her friends to hire boy-toy Jesus Luz so he can remain in the country legally? It's possible! [P6]
• Tyra Banks is expected to take the stand this week at the trial of the man accused of stalking her and threatening her staff. [NYDN, NYP]
• Angelina Jolie and Brad Pitt are sending their attorneys after the couple's former bodyguard to ensure he doesn't write a tell-all about life in the Brangelina home. [NYDN]
• Salma Hayek and Francois-Henri Pinault had a second wedding in Venice this weekend; guests on hand for the occasion included Anna Wintour, Ed Norton, Stella McCartney, Bono, Charlize Theron, Woody Harrelson, Lucy Liu, Penelope Cruz, and Javier Bardem. [NYDN, People]
• Heidi Montag and Spencer Pratt tied the knot this weekend, too, although the event featured fewer A-listers and many more MTV cameras. [People]

• Are Michelle Williams and Spike Jonze planning to head down the aisle this summer? That's what the Star claims, since the two have been together "almost a year" and supposedly "don't see why they should wait much longer." As good a reason as any! [Star]
• Sam Ronson changed her relationship status on Facebook to "It's complicated," and says she and LiLo have started talking again, which may mean they're getting back together. [Us]
• Mary-Kate Olsen "kept touching" actor Bradley Cooper at a Tribeca Film Festival party, which could be a sign that they might be dating. [NYDN]
• Parker Posey showed off her new man at the festival, too. She's dating a sculptor named Scott Lenhardt. [NYM]

PrivacyWatch celebrity sightings are submitted by our millions of Defamer operatives. We'd like to remind you that this feature is powered by you, so if you want to see more installments of PrivacyWatch, then all you've got to do is to send us your sightings. Submit yours to tips[AT]defamer.com (please put "sighting" or "PrivacyWatch" in the subject line so we don't lose them) and tell everyone about the time you saw a tired Kiefer Sutherland eating lunch with Gary Oldman and a couple of stunning brunettes. UPDATE (8/26/08): C'mon guys, we need you to be better than this! We just got this email from Gary Oldman's manager: "…About your item on Gary and Keifer, alas, Gary was not with Kiefer on Friday, Gary was out of the country on holiday with his family. Prior to that, Gary spent ten days in Barbados. Gary has not seen Kiefer for years and years. Whoever says they saw them together on Friday is, alas, mistaken!!" This week's installment also includes: Katherine Heigl, Anthony Michael Hall, Bryan Singer, Sean "P. Diddy" Combs, Louie Anderson, Tatyana Ali, Gordon Ramsey, Catherine Keener, Bradley Cooper, Victor Garber and more!SATURDAY, AUGUST 9 · Saw KATHERINE HEIGL at Cliff's Edge in Silverlake. My parents were in town and we wanted to take them someplace nice. We were sitting up in the outside covered area when Heigl and her entourage (which included her mother) were seated next to us. Alas, she decided that she didn't want to sit there (I heard her say something about not being able to smoke. Dead serious.), so they moved to a very secluded corner. Or, she may not have wanted to sit by us because when she came in, my sister nudged me and I totally turned around in my seat to look at who or what prompted the nudge ... perhaps she thought I was a super-fan who would lose my shit if she sat next to us. She would have been safe as I am not. Also, her voice is pretty annoying in person —way crackier than it is in movies. WEDNESDAY, AUGUST 13 · Saw ANTHONY MICHAEL HALL at Farmer's Market on Wednesday Aug 13th with Fiona Forbes (she's a Canadian tv host who no one in LA would reconize but i did!) He's still a little geeky. SATURDAY, AUGUST 16 · Fiesta Cantina, The 'Ho: Fighting my way through the gay-os to secure one last 2-for-1 drink special, I spotted BRYAN SINGER jauntily hopping to the music as he entered. He looked fresh and young but not as fresh and young looking as the A&F wearing tyke he was with. · JERRY O'CONNELL stopped by the 12 Shiny Nickels comedy show in Hollywood on Saturday night to see Carpoolers co-star TJ Miller perform. Seemed to have a delightful time. MONDAY, AUGUST 18 · Around 11:30ish, saw PUFF DADDY trying to de-puff himself with some light cardio at Equinox West Hollywood. Take that, take that! · LOUIE ANDERSON in front of Susina on Beverly. TUESDAY, AUGUST 19 · Saw twice in one night: the beautiful TATYANA ALI at Gingergrass and Hyperion Tavern with some friends. WEDNESDAY, AUGUST 20 · Had two good sightings in one night along the douchey Sunset Strip. First, outside of Ketchup, chef GORDON RAMSEY and his family. He was laid back and non-shouty, his kids looked happy and content and not snobby and privileged (I always look at the kids to see if they look miserable!). Then, later that night, outside of BLD Craft we see CATHERINE KEENER in the valet area. I spot her as we walk up and just as we pass her I said in a dorky voice "Catherine Keener, I love you". It cracked up the valet but she looked utterly confused and surprised (but awesome). · Mini-Alias nonreunion in the Arclight lobby: BRADLEY COOPER exited with hipster friends; one minute later, VICTOR GARBER entered. FRIDAY, AUGUST 22 · KIEFER SUTHERLAND must like the sandwiches at Dan Subs. Because he was there in Woodland Hills, on Ventura Blvd, again. This time, he was with GARY OLDMAN a Gary Oldman lookalike. Kiefer did not look so good — he looked exhausted. But he seemed to be enjoying his sub, but not nearly as much as the two stunning brunettes that were with them.

PrivacyWatch celebrity sightings are submitted by the loyal readers of Defamer. As a few emailers have noted, it took us a few weeks to collect this installment — if you want to see this feature run more frequently, be sure to send in your tips early and often! Submit yours to tips[AT]defamer.com (please put "sighting" or "PrivacyWatch" in the subject line so we don't lose them) and tell everyone about the time you saw "Hey Now" Hank Kingsley (aka Jeffrey Tambor) buying travel-sized saline solution and a "single fleet enema" at Gelson's.

PrivacyWatch celebrity sightings are submitted by our readers, and are posted several times a week (depending on volume), so send them in early and often—without them, the terrorists will have won! Submit yours to tips[AT]defamer.com (please put "sighting" or "PrivacyWatch" in the subject line so we don't lose them) and tell everyone about the time you saw Teri Hatcher and a band of 12-year olds on a scavenger hunt.

Sometimes we get sightings too precious to be filed away with the regular stalkers: