Scott Nicholoson hasn't even updated his own web page with this information about 'The Gorge.'
Apparently, it has a new title, "They Hunger," - or that may be the old title. Who knows? Maybe even he doesn't know.
Too, it may have been pulled due to the thing possibly going into production.
The cover on that instafreebie, by the way, is not the cover for the screenplay ebook.
However, I have "The Gorge," with yet another and different cover. My ebook is as old as the hills, and I have no idea where or how I got it, as I wasn't keeping track of that kind of information 5 years ago.
ADDED: It looks as if "The Gorge" is the "author's preferred edition of 'They Hunger.'"
Regardless [yawn], the thing's been pulled and is no longer available as an ebook from Amazon USA.