Deadline reports that Spainish actor Javier Bardem has been offered the lead in Ron Howard's Dark Tower. It's an odd casting choice as the character in the novels doesn't have an accent.
NYPost also says that Christian Bale is in the running for the lead. Bale seems likely since it's possible the Batman franchise is coming to an end for the actor. They mention Jennifer Carenter (Dexter) and Ghite Tazi testing for the role of Susannah. Take this one with a grain of salt as it comes from Page Six.