8ight

8ight was a planned sequel film to David Fincher's Se7en from 1995. The script was written by Ted Griffin and Sean Bailey.

Plot
The sequel was to be about the FBI having a psychic tracking down a serial killer.

Why It Was Cancelled

 * 1) David Fincher turned down directing the sequel because he hated the idea.
 * 2) Brad Pitt and Morgan Freeman were not interested in reprising their roles.

Result

 * The movie and its idea was later turned into the 2016 direct-to-video film Solace with Anthony Hopkins, Colin Farrell, Jeffrey Dean Morgan and Abbie Cornish.
 * Se7en is a stand-alone film.

Reference
https://openloadmovies.mobi/movies/solace