Chapter 27 is a 2007 biographical drama film depicting the murder of John Lennon by Mark David Chapman in December 1980, serving as an exploration of the latter's psyche. Written and directed by Jarrett Schaefer, based on the 1992 nonfictionbook Let Me Take You Down: Inside the Mind of Mark David Chapman, the Man Who Killed John Lennon by Jack Jones, the film stars Jared Leto as Chapman, with Judah Friedlander and Lindsay Lohan in supporting roles. Its title is in reference to J. D. Salinger's 1951 novel The Catcher in the Rye, which has 26 chapters, and suggests a continuation of the book.