Josh Hartnett holds the gavel as he prepares to ring the closing bell with director Austin Chick at the New York Stock Exchange on Friday in New York City.

Earlier in the day, the 29-year-old actor attended a luncheon in his honor hosted by Giorgio Armani Beauty at the Gramercy Park Hotel. (Josh is the new face of Emporio Armani Diamonds for Men.)

On Wednesday, Josh attended the premiere and after-party for his new movie, August, at the Soho Grand Hotel. Actress pals Kirsten Dunst and Susan Sarandon came out to support him (both pictured below).

August, which opened in NYC theaters today, focuses on two brothers, ambitious dot-com entrepreneurs attempting to keep their company afloat as the stock market begins to collapse in August 2001, one month prior to the 9/11 attacks. Adam Scott plays Hartnett’s brother in the movie.

Check out the interview with Josh on Wired.com.

45+ picture inside of Giorgio Armani man Josh Hartnett… More Here! »

Josh Hartnett shows up outside of the screening of his new film August at the Tribeca Grand Hotel in New York City on Wednesday.

August focuses on two brothers, ambitious dot-com entrepreneurs attempting to keep their company afloat as the stock market begins to collapse in August 2001, one month prior to the 9/11 attacks.

The film first debuted at the 2008 Sundance Film Festival.

Josh, 29, is currently filming Bunraku, where he plays a lone drifter who comes to town seeking revenge, but soon finds himself up against a bigger challenge than he originally planned.

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Hipster Josh Hartnett catches a flight out of LAX airport in Los Angeles on Wednesday wearing his textbook hipster uniform–facial hair scruff, beanie, jeans falling off the hip, and of course, horn-rimmed glasses.

The 29-year-old actor recently said that he refuses to let a stuntman take over his dangerous feats on set because he believes getting hurt is part of his job.

“I soldier on,” he said. “I don’t like to disappoint anyone, or let them down. I’ve had glandular fever and I’ve still gone on to the set, even though my throat was raging and my mind was saying to me, ‘Hey Josh, shouldn’t you have had this in your teens?’ There have been times when I’ve broken knuckles in screen fights, and once I broke a blood vessel in my eye.

“But you don’t quibble about that stuff, you just get on with it and accept it as part of the business - especially when you don’t like using stuntmen to do your job for you.”

15+ pictures inside of hipster Josh Hartnett… More Here! »

For the millionth time, Rihanna squashes rumors that she’s dating actor Josh Harnett.

This is the fake quote Rihanna supposedly gave at the World Music Awards in Monte Carlo last weekend: “I would be lying if I told you [Josh and I] were not more than just friends. I have so fallen for him, he is lovely. He is so hot and he is really sweet to me. When we hang out it feels right - even though it’s still pretty new.”

Rihanna says, “That is completely incorrect. People quote me on things that I never said. That quote is not a real quote. It’s not right at all.”

Here’s the real translation: Rihanna’s still single, guys! There’s hope for you yet!

Josh Hartnett attends the 30 Days of Night screening at London’s Soho Hotel on Tuesday.

The vampire action film was no sucker at the box office this past weekend - it claimed the number one spot with $16 million in ticket sales.

Josh is expected to make an appearance on UK’s Graham Norton Show on Thursday @ 10PM on BBC 2.

You can watch a recent interview of Josh talking about 30 Days of Night here. More Here! »

Josh Hartnett arrives at LAX airport on Sunday after attending a special screening for 30 Days of Night at NYC’s Chelsea West Theater.

Josh posed with his 30 Days of Night costar Melissa George. The horror thriller opens on Friday, Oct. 19.

Josh expected to be at the 30 Days of Night Screening at Screamfest 2007 on Wednesday.

Josh reportedly was spotted kissing and cuddling with Rihanna before they left a New York nightclub together last Thursday.

10+ pictures inside of Josh Hartnett @ LAX Airport… More Here! »

Rihanna and Josh Hartnett must have really hit it off while they filmed TRL together this past Monday Tuesday in NYC.

Hartnett, 29, and Rihanna, 19, were spotted kissing Thursday night at NYC club Pink Elephant, according to Us Weekly.

The new couple lunched together three weeks ago in L.A. and met up after her concert last night at the Nokia Theatre in Times Square. Rihanna and Josh “didn’t come together, but left together.”

Hartnett recently romanced Scarlett Johansson and Helena Christensen. Rihanna’s most recent conquest was actor Shia LaBeouf (she denied the hook-up).

Shianna is officially dead!

Rihanna drops by TRL on Thursday (taped Tuesday) and chats up Josh Hartnett, Laura Bell Bundy (Legally Blonde on Broadway), and members of pop punk group Paramore — lead vocalist Hayley Williams, lead guitarist Josh Farro, bassist Jeremy Davis and drummer Zac Farro.

Hartnett, 29, promoted his new film 30 Days of Night, which opens nationwide Oct. 19th. Bundy promoted the hit musical premiere of Legally Blonde on MTV, which airs this Saturday, October 12 at 1PM EST.

Favorite photo of the bunch: The giant-size Rihanna standing a foot taller than pint-size Paramore singer Hayley.

WHAT DO YOU THINK of Rihanna’s high-waisted pants? Her knit hat with chain detail?

40+ pictures inside of Rihanna @ TRL… More Here! »