William Friedkin and William Peter Blatty were repeatedly asked for ideas for a sequel, but turned the studio down on finding out that the producer assigned the project, Richard Lederer, wanted them to just make a quick-and-dirty sequel to exploit the first film's success. Instead, a screenplay was commissioned from William Goodhart, whose only other screenplay credit was Noi due a Manhattan (1969). The exact contents of Goodhart's screenplay have never been made publicly known, but apparently mixed in the first film's themes with a lot of odd metaphysical symbolism.

Film

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