There have been several attempts to make a big or small screen version of Stephen King’s epic Dark Tower series. The rights are currently with Ron Howard, although at one point they were with J.J. Abrams. With big Hollywood players behind it, an author with a proven fanbase and the potential for a big summer tentpole action franchise, it seems like The Dark Tower should have been a slam-dunk. But there are several factors that work against it.
Please note that there are minor spoilers ahead for The Dark Tower.