Stephen King has published well over 60 books in his prolific career. Many, as you’re no doubt aware, have made the jump from page to screen. Never, however, has his self-proclaimed “magnum opus.” Until now. Here’s your first look at The Dark Tower, the film based on King’s epic fantasy-sci-fi-Western-horror series. Matthew McConaughey plays The Man in Black and Idris Elba stars as the Gunslinger, the man furiously chasing him from the first sentence of the first page. Here’s your first look at The Dark Tower, which hits theaters August 4.