Stephen King shares his thoughts on adapting his books for screens, emphasizing the importance of staying true to his stories.

Mr. Mercedes, the AT&T Audience Network television adaptation of Stephen Kings Bill Hodges trilogy, is back for another season of murders and mystery. ET has an exclusive first look at the trailer for season three, which closely follows Finders Keepers, Kings second novel in the hard-boiled detective series. Mr. Mercedes returns Tuesday, Sept. 10 at 10 p.m. RELATED CONTENT:On Set of David E. Kelley's Anticipated Adaptation of Stephen King's 'Mr. Mercedes' to 'Dark Tower,' Stephen King Is Having a Moment (Exclusive)Harry Treadaway on the Chilling Parallels Between Mr.