Olivia Palermo: "Hangover Part II" Screening

Olivia Palermo and Johannes Huebl attend the Cinema Society & Bing screening of "The Hangover Part II" at The Top of The Standard on May 23, 2011 in New York City.

Credit: Wire Image

'Boardwalk Empire' Star Arrested For Assault

"Boardwalk Empire" star Paz de la Huerta was arrested last night after she allegedly threw a glass at former "City" star Samantha Swetra at an NYC party on Sunday ... and then socked her in the face.

Sources familiar with the situation tell TMZ, it all went down at The Standard hotel -- after Paz and Samantha got into it over Samantha's male friend ... we're told Paz was hitting on him and Sam got defensive.

According to sources, Samantha made a few snide remarks about Paz's level of inebriation ... and Paz got PISSED, throwing a glass and punching Samantha in the face.

We're told pieces of the glass became lodged in Samantha's leg, and her friend helped pick out the bloody shards ... while Paz was escorted out by security.

Samantha filed a police report this morning with her attorney Stephanie Ovadia.

Credit: TMZ

Audrina Patridge Arrives At The Standard Hotel

Audrina Patridge made her arrival at the Standard Hotel in Los Angeles, California on Wednesday, March 2nd, 2011 in a hurry to get inside.

Patridge has been busy filming for her upcoming VH1 reality show titled simply, Audrina (click here for a sneak peak), which chronicles the former Dancing with the Stars contestant as she pursues her acting career.

Credit: Accidental Sexiness (Rosy)

Blake Lively & Ryan Gosling Get Cozy in NYC

Ryan Gosling’s new movie Blue Valentine almost got an NC-17 rating, but the actor kept the flirtation with Blake Lively noticeably G-rated at the film's premiere after-party.

Still, the pair were almost inseparable as they engaged in close conversation Thursday night while the event spun around them at The Top of the Standard at the Standard Hotel in New York. At one point, Gosling started to leave Lively’s side and the actress yanked him back to continue chatting, according to an observer.

As the party wound down, they headed downstairs to the hotel’s Standard Grill to dine with two other companions.

Lively, 23, and Gosling, 30, were first spotted together in October at Disneyland where they took in the sights and some ice cream at the park, an appropriate setting since Gosling once was a Mouseketeer.

Neither of the actors is admitting to anything serious. "She's an incredible actress; she's a good friend," Gosling told PEOPLE at a lunch Thursday for Blue Valentine in New York at the Kimberly Hotel.

When asked generally about romances between actors and actresses, Gosling says, "You're not allowed to have friends in this business."

Credit: People

Whitney Port: 'Hands All Over' Album Release

Whitney Port attends Maroon 5's "Hands All Over" album release party at Le Bain in The Standard hotel on September 21, 2010 in New York City.

Credit: Zimbio

Photos by Jason Kempin/Getty Images North America

Kristin Cavallari and Jay Cutler: NYC Lunch Date

Not trying to keep their budding romance under wraps, Kristin Cavallari and new boyfriend Jay Cutler were spotted out in New York City on Monday afternoon (September 13).

The former "Hills" hottie and her Chicago Bears QB beau walked alongside one another before having lunch at The Standard Grill - with Miss Cavallari showing a big smile while her man seemed a bit camera shy.

Credit: Celebrity Gossip

Roxy Olin & Sammi Swetra: Target Viewing Party

Roxy Olin and Samantha Swetra attend the Target Kaleidoscopic Fashion Spectacular exclusive VIP viewing party at The Standard on August 18, 2010 in New York City.

Credit: Zimbio

Photos by Michael Loccisano/Getty Images North America