Mischa's Idea of a Good Time — Pot and Pills?  —  A West Hollywood police source tells TMZ that when she was arrested, Mischa Barton blew a .12 on her breathalyzer test, admitted to smoking marijuana earlier that day (which cops found in her car) and had what cops say looked like prescription drugs in her car — in an unlabeled bottle.

Milo Ventimiglia Admits to Hayden Panettiere Romance  —  ‘Heroes’ star Milo Ventimiglia has finally come clean about his relationship with co-star Hayden Panettiere.  The pair were rumored to be dating, but always denied they were more than just good friends.

Sean Penn and Robin Wright Penn Divorcing  —  Sean Penn and wife Robin Wright Penn are divorcing, their rep, Mara Buxbaum, confirms to PEOPLE exclusively.  —  No other details were immediately available.  The couple, who've been married 11 years, have two children together, Hopper Jack, 14, and Dylan Frances, 16.

Nicollette Sheridan Nipple Slip Bikini Pictures  —  Here are some new shots of Nicolette Sheridan in a bikini.  Now, if you're wondering how she keeps her body so damn tight in her old age, it's not from knitting, here are pictures of her exercising too.  You know, Nicolette might …

Aniston, ‘Sex and the City’ hottie shack up  —  Plus: Shrinking Ashley Olsen; celebrities who slouch  —  Jennifer Aniston has a new man to go with her latest nose job — “Sex and the City” hunk (and Rosario Dawson's ex) Jason Lewis.  Best known as the age-inappropriate boy toy belonging …

JESSICA TANKS  —  AS great as she was playing Daisy Duke in the “Dukes of Hazard” (her cutoff jeans were awesome), Jessica Simpson is having a hard time with her movie career.  Her latest, “Blonde Ambition,” a romantic comedy with fellow Texan Luke Wilson, was headed...

Island I-Do's for Murphy & Edmonds?  —  Will Eddie Murphy and Tracey Edmonds be married by the end of the year?  —  It sure sounds like it.  I'm told the Hollywood power couple will wed any minute now in the South Pacific.  —  A source tells me guests and members of the wedding party are expected to arrive in Tahiti sometime today.

Fetus Or Bloat?  —  Tattoo artiste and reality star, Kat Von D, might be knocked up.  During the preview for the new season of “L.A. Ink” Kat declares “I'm pregnant!"  But it could've just been a crack making fun of her f**king jelly and grease belly.  —  People have also been leaving her “congratulation” notes on her MySpace .

Jenna Fischer dating David Spade  —  I never got the appeal of David Spade, because the few times I watched that terrible “Just Shoot Me” show I found him incredibly annoying.  Somehow he's managed to score with Hollywood babes including Kristy Swanson, Lara Flynn Boyle and Heather Locklear, so maybe he's fun to be around.

Ex-Yank Popped for Alleged Vehicular Homicide  —  Jim Leyritz, a member of the New York Yankees championship teams in the 1990s, is being held at Broward County Jail in Florida, after being arrested for allegedly driving under the influence and causing the death of a woman driving the other car in a collision.

Pregnant Lily reveals her budding bump at the opening of Harrods winter sale  —  Pregnant singer Lily Allen revealed her budding bump as she arrived at Harrods to open the annual winter sale.  —  The 22-year-old singer confirmed earlier this month that she was expecting her first child …

Tara Conner to Write Memoir of Her Rehab Experience  —  Video courtesy Today  —  Last year's Miss U.S.A. Tara Conner celebrated her 22nd birthday Dec. 13 - and is also marking her first year of sobriety, she announced on Friday's Today show.  —  And by this time next year she intends …

SNOOP'S LOVECHILD WANTS TO BE PART OF TV SHOW  —  Movie & Entertainment News provided by World Entertainment News Network (www.wenn.com)  —  Rapper SNOOP DOGG's nine-year-old lovechild wants his father to help him become a TV star - by including him on his reality TV show.

‘Hills’ cast member, friend dole out money, inspiration  —  Maybe “Hills” bad boy Spencer Pratt isn't so bad, after all.  —  The MTV reality show cast member quietly came to North Carolina last week and participated in charitable work — without tipping the paparazzi off first.

TWEENS SPLIT  —  “HANNAH Montana” star Miley Cyrus, 15, and her singing sensation boyfriend, Nick Jonas, 15, of the Jonas Brothers, have split up.  The two, who are on tour together, tried to keep their relationship secret, but Cyrus gave him a kiss on the cheek onstage during one concert.

Ant Loses Identity — $90,000 Stolen!  —  It was no joke for “Celebrity Fit Club” host and “Last Comic Standing” judge Ant, when he was majorly ripped off — by someone who stole more than $90,000 from him using fake checks.  Merry Christmas!  —  TMZ caught the comedian leaving his apartment last night …