I was curious as to the number of screenplays that were never used that were written by Mr. King. As an example, I believe he had written a screenplay for "The Stand" early on that was never used; when he wrote the miniseries, I assume that wasn't the same one.
Is there a link with this information, or could Ms. Mod supply the information if it isn't difficult to find?
Just off the top of my head, I thought he wrote one for "Cujo," "The Dead Zone," "The Shining" (different from the one he eventually did for the miniseries) and a few stories in "Night Shift." Don't quote me, though, because I just don't know.
Rocky Wood is probably the best source for that. The only one that is immediately coming to mind that you haven't mentioned (and that's not a confirmation of what you have mentioned as I'd have to double-check) is "The Shotgunners."
He wrote one for Something Wicked This Way Comes, but I don't know if that was ever meant to be produced -- it may have just been an exercise in adapting a novel to a script. He also wrote one for Patrick McGrath's Asylum that wasn't used.