Josh Hartnett's New "Mystery Woman"

On November 19, Australia’s Daily Telegraph ran photos of Josh Hartnett, 28, at a Sydney, Australia, airport with a “mystery woman” who was later identified as actress Amber Sainsbury, his costar in the upcoming horror-thriller 30 Days of Night.

According to the Telegraph, the pair holed up at a Sydney-area hotel and had brunch two days in a row at local café Forbes & Burton.

Harnett’s rep downplayed any romance, telling Us the actor has been hanging out with “a friend…nothing more.”

Not that Scarlett Johansson, 22, would mind. A source tells Us the couple of more than a year recently called it quits.

“They’ve just been growing apart for a while, and they had had enough,” the insider says.

Confirms a second source, “Yes, they broke up.”

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