I found this over at Dreadcentral.com :
Heard from Dave Kajganich, the writer of the upcoming theatrical remake of Stephen King's IT, recently, and he was kind enough to give us an update on how this massive story is being streamlined into one film.
"The remake will be set in the mid-1980s and in the present almost equally -- mirroring the twenty-odd-year gap King uses in the book -- and with a *great* deal of care and attention paid to the backstories of all the characters," says Kajganich. "I think the real twist here is that my pitch to WB -- which they've assured me they're on board for -- is that this will not be PG-13. This will be R. Which means we can really honor the book and engage with the traumas (both the paranormal ones and those they deal with at home and school) that these character endure."
"I plan to be very protective of the book," Kajganich continues. "The reality, though, is that WB wants to do this as a single film, so I will have to kill a few darlings to make that happen. You have my promise, though, that I will do this with the utmost humility and respect for King's work. He's the King, after all, and I intend to continue to pledge to him my allegiance."
He had me at rated R. Dave has also assured us that even though what happens to the script is out of his control once he turns it in, the producers are top notch and willing to go to bat to bring the above to fruition. Look for more on IT soon!
Obviously the jury will be out for while still but that's encouraging for now.