Sony Pictures has released the first trailer for the sci-fantasy Western The Dark Tower.

The official synopsis reads: “There are other worlds than these. Stephen King’s The Dark Tower, the ambitious and expansive story from one of the world’s most celebrated authors, makes its launch to the big screen. The last Gunslinger, Roland Deschain (Idris Elba), has been locked in an eternal battle with Walter O’Dim, also known as the Man in Black (Matthew McConaughey), determined to prevent him from toppling the Dark Tower, which holds the universe together. With the fate of the worlds at stake, good and evil will collide in the ultimate battle as only Roland can defend the Tower from the Man in Black.”

Two teasers were released yesterday, along with two character posters (see “Teasers Herald 'Dark Tower' Trailer”).

The movie opens in theaters on August 4.