Book excerpt: In the mid-1950s, to combat declining theater attendance, film distributors began releasing pre-packaged genre double-bills--including many horror and science fiction double features. Though many of these films were low-budget and low-end, others, such as Invasion of the Body Snatchers, Horror of Dracula and The Fly, became bona fide classics. Beginning with Universal-International's 1955 pairing of Revenge of the Creature and Cult of the Cobra, 147 officially sanctioned horror and sci-fi double-bills were released over a 20-year period. This book presents these double features year-by-year, and includes production details, historical notes, and critical commentary for each film.