It’s a good week to be a Stephen King fan. Yesterday we reported that Harry Potter director David Yates is teaming up with Harry Potter screenwriter Steve Kloves for a multi-film adaptation of Stephen King’s The Stand, and now it looks like another Stephen King film adaptation is on its way as well. Variety reports that Jonathan Demme has optioned the feature film rights to King’s upcoming sci-fi novel 11/22/63 with plans to write, direct and produce the adaptation. The intriguing story centers on a 35-year-old high school English teacher who travels back in time to prevent the assassination of President John F. Kennedy. King will serve as executive producer on the project.This is exciting stuff, as Demme’s last feature film outing was 2008’s indie Rachel Getting Married. He’s got a knack for character pieces (as evidenced by The Silence of the Lambs and Philadelphia), and it’ll be incredibly interesting to see him tackle sci-fi. While the film is currently without a distributor, Demme plans to start shooting by fall 2012.