I'm not a fan of Stephen King and I haven't read the Dark Tower Books. I didn't know it was an S.King adaptation. If I could evaluate the movie as its own qualities it's nonsense that it deserves less than 6 stars. Scenes, actors, art direction, editing, sound mixing all were first class. What was missing was the quality and consistence of a sold script which stems from the imagination of Mr. King. I enjoyed this as a typical science fiction action movie.