JoshHartnett is negotiating for the vampire story 30 Days of Night.

Set in Alaska the film will chart the longest night in the northernmost town in Alaska, a place where the sun does not rise for a whole month in the dead of winter. Perfect for Vampires to go a-hunting.

From Yahoo News:

An evil force emerges from the darkness, striking terror in the town. The local sheriffs -- a husband (Hartnett)-and-wife team -- are forced to choose between saving themselves and helping the town survive until daylight returns. The studio is looking for a female lead.

Sounds an interesting concept, and previously to Lucky Number Slevin (review) I would have thought Hartnett wasn't such a great choice and that this film was headed for the teen horror market. However I have hope now, and that's heightened by the Ghost House Pictures production label which is run by Sam Raimi and Rob Tapert.