A year before Agatha Christie adaptations defined the mid-1970s mystery genre, THE LAST OF SHEILA ('73) put a new spin on the "whodunit" template – unmasking the exploits of the wealthy class with biting self-parody. With their mutual fondness for hosting puzzle-themed parties, Broadway's Stephen Sondheim and Golden-Age actor Anthony Perkins wrote a murder mystery inspired by their own soirées. Despite its box office disappointment for Warner Bros., the film helped kicked off star-studded myster