There are a number of script reviews available online for David Benioff's screenplay of Troy. (The best one is here, with another good one at FilmForce.) Judging from the reviews, this isn't Professor Nagy's Iliad. No gods, for one thing, and Patroclus is Achilles' "adoring, beloved teenage cousin." Deaths don't occur where or how you'd expect. A radical revision? Sure. But it looks like a thoughtful one, and what I've seen so far is very encouraging. (Besides, for the adaptation to be truly faithful, the dialogue would need to be subtitled, and written in a dead language. And that would just be silly.)