Well, it is kind of RINGS-y - as King himself admitted. But mixed with Spaghetti-Westerns and 70´s pop culture.
In any event, the hardcore fans will probably hate this movie. And I am sceptical about whether a mass audience will be interested.
I understand that the producers treat this film as a one-off, for now, unless it is a success, of course. The January release date might not be a kiss of death anymore - but it does not exactly say: SUMMER/CHRISTMAS TENTPOLE!
Entertainment Weekly did a few pieces about THE DARK TOWER, one of them here: http://www.ew.com/ar...-eddie-susannah
It was already mentioned that Eddie and Susannah won't appear in this first film, I believe. For me interesting is that it's actually a sort of 'sequel' due to the presence of an important item. I only just finished this mammoth work and nearly - very nearly - would have heeded King's advice to stop reading the final 15 pages or so. If I had I wouldn't have understood this at all.
One interesting observation: I know Roland now for nearly 30 years. And probably like most others I imagined a vaguely Eastwood-ish character of Magnificent Seven cloth, a tall white gunslinger guy. Now having heard that Elba landed the part for the last 900 pages or so I repeatedly saw him before my mind's eye when reading this final run to the door of that tower. Indeed, he seems to me perfect for Roland, incorporating all his traits as if they naturally belonged to him. A very good decision.