I'd imagine a big chunk of this film will be set in Mirkwood, and I'm hoping Peter Jackson doesn't follow the same old formula and focus only on the EPIC ACTION. It has the potential to be really creepy. He's got to somehow find the balance between the stunning photography we expect and the complete darkness described in the books.
As much as I love Lord of the Rings and feel he got a lot of the atmosphere right, including some genuinely chilling imagery, he failed to make the encounter with Shelob anything like it should've been. I'm scared of spiders and I didn't flinch through any of that.