But when you work with somebody every day, it's like trial dating.
He first came to attention in 1997 for his role as Michael Fitzgerald in the television crime drama series Cracker.
I think trying to stay at the top is a shortcut to unhappiness." Hartnett also took a break from acting, saying "I spent a bit of time really thinking about whether this was the right thing for me." In 2011, Hartnett became one of a handful of celebrities attached to USAID and Ad Council's FWD campaign, an awareness initiative tied to that year's East Africa drought.
He joined Uma Thurman, Chanel Iman and Geena Davis in TV and internet ads to "forward the facts" about the crisis.
He starred in the Brian De Palma–directed neo-noir crime thriller The Black Dahlia (2006).
Next, he appeared in the drama Resurrecting the Champ (2007), alongside Samuel L.
[on filming I Come with the Rain (2009)] Shooting in Hong Kong was nice. And it was about a five-hour car ride from the nearest airport to the foot of the mountain where this town was.
Hartnett had starring roles in the war film Pearl Harbor, the drama O, the war film Black Hawk Down, the romantic comedy 40 Days and 40 Nights, the crime thriller Lucky Number Slevin (2006), and other films.He starred in the new campaign of the Emporio Armani fragrance, "Diamonds for Men", being featured in both print and TV ads for the fragrance, thus becoming the first male celebrity to represent Giorgio Armani Beauty.He has been featured on many magazine covers, such as Cosmogirl, Details, Entertainment Weekly, Girlfriend, Seventeen, Vanity Fair, GQ and Vman, in addition to being in other magazines like Vogue, ELLE, People, Glamour, Intouch and In Style.)."I don't recommend it to young actors," Hartnett tells the mag."You can make a lot of enemies in the business that way. "Hartnett, who has somewhat of a history of dating beautiful actresses, said he never bragged to his friends about romancing gorgeous Hollywood gals."They want to hear all about what you're doing," he said. Back when I dated a few very beautiful, very famous girls, I said something once—it wasn't really a complaint—and my buddy said, ‘Oh my God, my diamond shoes are too tight.' He coined the phrase."When asked what the secret to keeping a girlfriend happy is, Harnett dished, "Let them be on set whenever they want, with whichever costar you're working with. They get very suspicious."Sure sounds like he's learned some valuable dating lessons!