I think Holly Black's
The Coldest Girl in Coldtown and
Richard Kadrey's Sandman Slim series would both be excellent movies.
The Coldest Girl in Coldtown, I think, would make a great YA fall teen, supernatural movie. Easily filling in the spot of the
Twilight movies and bringing a new look into the vampire film genre. And I think it's something that would actually be easy to translate into film.
And I would just really like to see Sandman Slim in the flesh. The series already has six books that could easily hold their own as separate movies. Even though each book has a different plot/problem, it also has a great overall plot that move effortlessly from book to book.
And, there's already a perfect
Candy.