The Dark Tower is a 2017 American dark science fantasy western action film directed and co-written by Nikolaj Arcel. A continuation of Stephen King's novel series of the same name, the film stars Idris Elba as Roland Deschain, a gunslinger on a quest to protect the Dark Tower—a mythical structure which supports all realities—while Matthew McConaughey plays his nemesis, Walter Padick / the Man in Black and Tom Taylor stars as Jake Chambers, a New York boy who becomes Roland's apprentice.
Intended to launch a film and television franchise, the first installment combines elements from several novels in the eight-volume series, and takes place in both modern-day New York City and in Mid-World, Roland's Old West-style parallel universe. The film also serves as a canonical sequel to the novel series, which concludes with the revelation that Roland's quest is a cyclical time loop; the presence of the Horn of Eld, which Roland carries in the film, indicates that this is the next cycle.
The Dark Tower premiered at the Museum of Modern Art in New York City on July 31, 2017 and was theatrically released in the United States by Columbia Pictures on August 4, 2017. The film grossed $113 million worldwide on a $66 million budget and received generally negative reviews, with critics calling it "a dull disappointment without any set audience: incomprehensible to newbies and wildly unfaithful and simplistic to fans of King's books," though Elba's performance earned praise.