Oh, sure, you saw the teaser trailer (it racked up a record-shattering 197 million views in a single day, after all), you've seen the photos of Pennywise and the dread-inducing red balloon, but none of that prepared you for New Line Pictures' first official trailer for It, based on the creeptastic masterwork from writer Stephen King.

Check it out above, and get ready:  We all float to the cinema September 8.