premise: The Dark Tower has remained unadapted to film.
hypothesis: The Dark Tower is an upcoming American science fantasy western action horror 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 -- and Matthew McConaughey as his nemesis , Walter Padick . The film is set to be released on August 4 , 2017 in 3D and 2D by Columbia Pictures .