 This was filmed as "The Spider". Prior to completion, the title was  changed to "Earth vs. The Spider" and that was used for the main  title on the film itself. When _Fly, The (1958)_ (qv) became a  blockbuster for 20th Century Fox, American International decided to  ride on their success by changing the title back to simply "The  Spider" on all advertising material. The main title on the film  itself was never changed.