It will cause the 2012 apocalypseIt's hibernation lasts roughly 27 years. The last time it woke up was in 1985 and It completely destroyed Derry. Now that King has revealed It's existence to the world, It will be forced to destroy the entire planet when It awakens in 2012 forcing humanity to start over so It can continue to exist in relative peace. At least until someone decides to write another book about It.
IT is a Youkai
IT was responsible for the Hinamizawa Syndrome.
It being a woman wasn't omitted in the movie.The "Kiss me fatboy" scene was just Foe Yay.
The true form of the Deadlights is...An innumerable number of "balloons" glowing with an orange light, floating endlessly. Within each balloon is the soul of one of the children that IT killed, causing them to float.
The Beldam in Coraline is related to ItShe just uses a different tactic to get her food.
The Turtle and IT are tied into the Dark Tower universe.Roland explains that each beam has two guardians on the ends, and one greater demon elemental in the middle. The Turtle is Maturin, and IT is the demon elemental of fear. For that matter, Maturin's death was the result of the ongoing attempts at "breaking" the beam, and Bill and company inadvertently led to further weakening the structure by killing IT.