Chapter 27 is a 2007 biographical film written and directed by Jarrett Schaefer and depicting the murder of John Lennon by Mark David Chapman in December 1980. The film is Schaefer' directorial debut, and serves as an exploration of Chapman's psyche. It is 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. Jared Leto as Chapman, with Judah Friedlander and Lindsay Lohan in supporting roles.