You may not know Nikolaj Arcel, the Danish filmmaker who wrote and directed 2013 foreign Oscar nominee "A Royal Affair," and penned the original Swedish "The Girl with the Dragon Tattoo." But you will soon. Deadline reports that Sony Pictures Entertainment, which signed on earlier this year to finance a "Dark Tower" franchise, is circling Arcel to direct and rewrite this massive genre project that will involve condensing — or expounding upon — the eight novels in King's celebrated, quasi-Western, sci-fi fantasy opus. There's already a script out there, co-written by Akiva Goldsman and Jeff Pinkne, for "The Gunslinger," King's first novel in the series that follows titular lone warrior Roland on his mythic trudge to find the mysterious and cosmically powerful Dark Tower.