The X-Files is a long-running series, therefore it is no wonder that in the process some stories were written but never told. In many cases, aspects of unmade episodes were adapted or were moved from one episode to another. But it was not always like that. These are the best concepts behind unproduced screenplays for The X-Files, and story elements/topics that remain to be seen in the series.
In 1994, Jeffrey Reddick wrote a script featuring Scully’s younger brother, Charles, having a premonition of his flight crashing, which prompts Mulder and Scully to investigate. Whilst Reddick never submitted the script, it was revamped as a feature, and coincidentally The X-Files vets James Wong and Glen Morgan were brought on to helm the project which became the 2000 horror film Final Destination.
In 1998, Thomas Ligotti and Brandon Trenz came up with a story in which an FBI agent is assassinated by a man who transforms into a mannequin, leading Mulder and Scully to follow a trail of clues to the sinister town of Crampton. In the end, Ligotti and Trenz’s efforts to get the screenplay produced did not pan out, and the project never got off the ground, as the series’ producers were not accepting scripts from outside contributors (spec scripts).