Has no one here yet posted anything about Hard Candy (directed by David Slade)?
I haven't seen 30 Days Of Night yet, (though it's next on my Netflix queue), but I do have some comparison/commentary as far as Hard Candy is concerned:
In Hard Candy, almost the entire movie is completely between these two characters. It's them butting heads/mutual fascination/internal frustration/psychotic angst and eventual revelation of real intention. Visually, it's a beautiful movie. And the beauty of it sucks you in and is somewhat hypnotizing in the contemporary simplicity. Most of the movie takes place inside the lead male character's house. The whole thing could probably be pulled off as a play if it weren't for some necessary camera angles to keep plot devices hidden.
The one main overriding thing from THIS movie that indicates a quality that David will (likely) bring to Eclipse is character tension. He knows how to play that string of tension/attraction/push/pull that rides between two actors and make it sing till it's playing it's own tune. How would this quality translate to Eclipse? The romantic tension between Bella and Edward, the pull and push of Bella and Jacob and the seething animosity/eventual moderated acceptance between Edward and Jacob is (I think) going to be the main highlight/focal point. The marriage proposal, the tent scene, the J/B kiss on the mountaintop, the kiss/punch, these are going to rock your socks off. That triangle is the core and foundation for everything in Eclipse.
That and a bunch of bitchin' vamp vs. vamp and vamp vs. werewolf fights.

That degree of "fight training" that everyone is twittering about? Think the first Matrix movie. Only instead of slamming into concrete walls/subway stations think knocking down the entire forest one slammed-into tree at a time.
I for one can't wait till the Edward/Victoria face-off. I have it all choreographed in my mind to the tune of "Infra-Red" by Placebo (from Stephenie's playlist).