Liev Schreiber "sifting" through the trash near his Noho apartment ... Jeremy Piven walking with girlfriend Ashley Chontos in Soho ... Brad Pitt arriving at JFK to board a flight ... Brooke Shields shopping on Madison Avenue ... Slumdog Millionaire's Freida Pinto walking around Midtown with an H&M shopping bag in hand ... Justin Timberlake walking downtown with an unidentified "female friend" ... Mariska Hargitay and her husband leaving the Nederlander Theatre on West 41st Street ... and Madonna walking in the snow with Jesus Luz.

• It seems Rihanna and Chris Brown have reunited: The two have been holed up at Diddy's Star Island mansion since late last week and are now "focusing on a reconciliation." Not surprisingly, fans have been a little bit dismayed by the news. [NYDN, People, Reuters]
• Why didn't Katie Holmes walk the red carpet at the Oscars? She's on an "intense detox diet" that has left her "lethargic," poor thing. [NYDN]
• Sumner Redstone is reportedly dating a former flight attendant who is six decades his junior. [R&M]

Gwyneth Paltrow ducking into an SUV in the financial district ... Jennifer Connelly and Paul Bettany walking with their son and dog... Alec Baldwin and Steve Buscemi shooting scenes for 30 Rock in Long Island City ... Keri Russell shopping with her husband ... Matthew Broderick opening a car door for son James outside their Village townhouse ... Katie Holmes carrying a stack of fashion magazines ... Kevin Kline standing on the set of The Extra Man ... and Jeremy Piven leaving the Cort Theatre on West 48th Street after seeing Your Welcome America.

• After a handful of false alarms (and after claiming they were weren't even engaged) Tom Brady and Gisele Bundchen finally got married yesterday, tying the knot in a small ceremony at a Catholic church in Santa Monica. [Us, People]
• It looks like Jeremy Piven won't be penalized for walking away from Speed-the-Plow, since officials from Actors' Equity and the Broadway League couldn't come to a consensus at his hearing yesterday. [NYT, NYP]
• Russell Simmons has agreed to pay Kimora $40,000 a month in child support until their daughters turn 19. [People]
• Derek Jeter is supposedly dating a 22-year-old FIT student. Given she enjoys playing his voicemails for her group of friends, you probably shouldn't expect the relationship to last very long. [NYDN]

Jeremy Piven convinced five other actors his mercury poisoning is real, deadlocking a union hearing and sparing Piven penalties for leaving Speed the Plow. How did he do it? Maybe with some crying.

Jeremy Piven is expected to show up for his Actor's Equity hearing tomorrow to determine whether his "mercury poisoning" excuse was totally made up, duh. The biggest hole in Piven's defense? His exhaustively documented partying.

• Andre Balazs and Sharon Stone were seen cuddling on a couch "all night" at the Oscar party at Guy Oseary's home on Sunday, and looked like they "couldn't have been more into each other." We're beginning to sense a pattern here, how about you? [NYDN]
• Newlyweds Tommy Hilfiger and Dee Ocleppo are expecting a baby. [P6]
• Jeremy Piven will make his case in front of an Actors' Equity panel tomorrow and offer proof it was mercury poisoning that forced him to drop out of Speed-the-Plow. Good luck with that. [NYP]
• Warren Beatty supposedly wants Lindsay Lohan to star in his new movie, but only if she moves in with him and Annette Bening during filming. [Fox411]
• Chris Brown has started taking anger management classes. He's also had to hire bodyguards because he says he now fears for his safety. [NYDN, InTouch]

A terrifying cultural milestone is approaching, one that will further destroy the image of our nation's menfolk, already irrevocably sullied by Michael Phelps' bong-toking and Jeremy Piven's malingering and hairplugs: For the first time in America's history, women will outnumber men in the labor force! Since 82 percent of recent job losses effected men, statistics are likely to soon reveal that more than half the country's breadwinners are of the fairer sex.

• Times publisher Arthur Sulzberger Jr. has a girlfriend. Except it's not Caroline Kennedy as some have suggested. Sulzberger, who separated from his wife in March, is dating a "vivacious" lady named Helen Ward, who he met in Peru a year ago and who is separated from her husband, too. [P6]
• Jeremy Piven brought his cocktail waitress girlfriend to the SAG Awards on Sunday night, but the poor thing didn't even get to sit with him during the ceremony. [NYDN]
• Michael Lohan is asking fans of his daughter to help him free Lindsay of Samantha Ronson's "bondage." [NYDN]

When Jeremy Piven abruptly left the Broadway production of Speed-the-Plow, citing mercury poisoning, he pissed off everyone working on the show. Now the New York Times is offering them some condolences: Plow's better Piven-less.

1/24 — Saw JEREMY PIVEN sweating off all of that mercury on the Stairmaster at Equinox. He had bags under his eyes that rivaled Droopy the Dog's. [Hollywood PrivacyWatch is written by and for Defamer readers; send your sightings to tips@defamer.com.]

Wispy British actress Sienna Miller is heading to Broadway next season to star in Patrick (Closer) Marber's After Miss Julie. She joins an increasingly steady stream of movie types heading to the stage. What gives?

Here's a few reasons you might want to think twice about posing for the cover of Page Six Magazine:

Neither Hollywood celebrities nor corporate trade groups are good sources of information on health issues. That doesn't make the National Fisheries Institute's response to Jeremy Piven any less interesting.

• Sarah Jessica Parker is dying to cast Britney Spears as Carrie Bradshaw's younger cousin or niece in the next Sex and the City movie, or at least that's the rumor anyway. [MTV]
• Jeremy Piven was not on the plane that crashed yesterday, just in case you were worried or anything. [NYDN]
• Lindsay Lohan says she works "as hard" as other actors, but she gets no credit due to the "mess that I created in my life." [NYP]
• Is John McCain thwarting our chance to see Cindy McCain on Dancing With the Stars? Say it isn't so! [P6]

Not surprisingly, America's fishermen weren't so happy to see Jeremy Piven put down their livelihood on GMA this morning and tell the world that he hasn't eaten fish in five months and has no plans to start any time soon. The National Fisheries Institute, a seafood trade association, has struck back with a rebuttal. It's in the form of subtitles that appear below Piven's interview. (And we're pretty happy we just learned a new word: macro-psychotic.) Looks like the ball is now in your court, Piven. [YouTube]

Jeremy Piven sat down with Diane Sawyer on the set of GMA this morning to clarify his recent bout with mercury poisoning and defend his decision to drop out of Speed-the-Plow. It's a little sad to see Piven spin around in increasingly desperate circles, alternately dropping in the names of the doctors he's consulted while also pointing out that he doesn't normally "do" Western medicine. But at least you can go back to eating spicy tuna rolls without fear. [ABC News]

Maybe Jeremy Piven isn't off the mercury—after all, his attempt to justify his recent behavior to Good Morning America was oilier than a soy sauce-slathered eel roll.

A very not-mercury-poisoned-looking Jeremy Piven, who quit his high-profile Broadway show Speed-the-Plow using the old too much sushi excuse, managed to drag himself out of bed at dawn to go on Good Morning America today. Feh.

Patrick Swayze is battling a reportedly rapidly-advancing disease beyond his control while young heiresses Courtenay Semel is viciously fighting with her heiress ex for no real reason whatsoever.