The importance of this book cannot be overstated. It was this specific collection that caught the eye of filmmaker Ridley Scott. After seeing Giger’s painting Necronom IV , Scott cast Giger to design the titular creature and environments for the 1979 film Alien . The Necronomicon is essentially the visual bible for the Alien franchise, establishing the aesthetic of "used universe" science fiction and body horror that permeates modern cinema.