Josh Hartnett: It's Hammer Time!

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…