Deadline's Mike Fleming, Jr. broke the news last night:

Learning today that his script The Hateful Eight leaked after he gave it to a small circle of actors, Quentin Tarantino tells me that he’s so upset that he has decided that he will not direct that film next. So basically that means the conversation that will be circulating around town following this story with Tarantino goes from an ensemble Western to a whodunit. As in, which actor or their reps leaked the script that, as a result, is going on the shelf — literally a bookstore shelf, because Tarantino tells me he will publish it first and maybe revisit the prospect of a movie in the next five years.

The internet's reaction to this news has been mixed. Some are accusing Tarantino of being a prima donna, and others are calling for the head of whichever dumbass agent leaked the script. But Tarantino admits that killing the film is more of a matter of principle this time; he loves when his scripts leak on the internet later in the process. I think it's well within a writer's rights to kill a project when an early, unpolished draft hits the internet. (Before this story, Stephenie Meyer's post-leak refusal to publish Midnight Sun, the retelling of Twilight from the vampire's perspective, was the most infamous example of this phenomenon.) But I'm excited about the prospect of reading an unproduced Tarantino film script in book form; the prospect of creating a new Tarantino film in my imagination (and then maybe eventually comparing it with a finished version years later) is exciting to me.