Arts

Every seven years for the last half-century, director Michael Apted has turned his camera on a group of former British schoolchildren he first encountered in 1964 when they were only seven years old.

The infamous case of the West Memphis Three — teens convicted of the Satanic 1993 murders of three boys — has already been the subject of three first-rate documentaries by Joe Berlinger and Bruce Sinofsky: “Paradise Lost: The child Murders at Robin hood Hills” (1996), “Paradise Lost 2: Revelations” (2000) and “Paradise Lost 3: Purgatory” (2011).