The clown in IT doesn't technically eat kids — it consumes their fear, but the process is fatal. Pennywise/IT preys on the children of Derry because their fears are easier to manifest into a physical form and harvest.
In both the book and the films, It is an ancient alien creature, older than civilization, and in King's novel, older than our universe. It feasts on the flesh of humans simply because our fears are easy to manifest and they make us taste better.
This creature feeds off fear and its preferred victims are children as their fears are simpler, but there might be another very different reason for that, and it's rooted on the real meaning of IT.
In the novel Georgie was left on the street to bleed to death while the full extent of his fate is fairly ambiguous in the miniseries, but here he's dragged screaming wholly into the sewer where we can assume Pennywise ate his physical body.
While it's unclear if it was ever shot, a deleted scene from the IT 2017 script saw Pennywise actually eat a baby in front of its mother. There are lots of disturbing scenes in Stephen King's original IT novel. Anyone who's read that gargantuan tome can readily attest to that fact.
Pennywise offers Georgie his boat back, but when Georgie attempts to reach out to it, Pennywise grabs Georgie's arm and bites it off, leaving Georgie to bleed to death in the rain.
Twenty-seven years after their first showdown with the murderous clown, the now-grown members of the Losers' Club converged on Derry to defeat Pennywise forever. In their final battle, the Losers' Club was able to kill Pennywise by reducing him to a child-like form as they overcame their fears.
They reach the conclusion that Pennywise has all of the adults under some sort of spell that prohibits them from seeing him. The adults of Derry are shown to be villainous in their own right as well. The adults of Derry are shown to be true villains of the story in the same way as Pennywise.
And if his victim believes him to be powerless, he will become powerless. And so the group figures out that their best bet is, essentially, to bully the bully: They mock Pennywise, telling him he isn't scary. Humiliated, Pennywise begins to shrink, transforming into an almost Benjamin Button–like, melted clown-baby.
Throughout Stephen King's It, Pennywise is referred to as a male, but author Stephen King pulled a fast one on readers in the It book ending by revealing the creature's true form was a pregnant spider, implying that it is, in fact, biologically female.
IT arrived on Earth through an event similar to an asteroid impact, landing in what would later become Derry, Maine. Once there, IT adopted its usual pattern of hibernation that lasted between 27 and 30 years, awakening to kill and eat and then going back to sleep.
A common interpretation of this phrase is that it refers to where the souls of IT's victims go after they die, as they wouldn't go to heaven nor hell, staying instead in the “deadlights”, which would be a sort of limbo, thus “floating” in that middle point for eternity.
While playing Pennywise in IT and IT Chapter Two, Bill Skarsgard wears a set of prosthetic teeth, for times when the dancing clown really needs to show off his razor-sharp chompers. The problem is, these teeth caused Skarsgard to drool, and not just a little. The teeth caused full-on torrents of slobber from the actor.
Pennywise was always evil - or, more accurately, he never really existed. He was just a creation of IT to lure in children so they could be terrified and then eaten. Or so that IT could create chaos, incite riots and spread fear.
The character is an ancient, shape-shifting, trans-dimensional evil entity who preys upon the children (and sometimes adults) of Derry, Maine, roughly every 27 years, using a variety of powers that include the ability to shapeshift, manipulate reality, and go unnoticed by adults.
It's possible that there really was a human version of Pennywise the Dancing Clown who lived in Derry and became possessed by the other-worldly entity, carrying out violence in the same way that Henry Bowers did.
IT is a shape-shifting creature known as a Glamour who is billions of years old. Although it lived on planet Earth for many years, Pennywise originated in a void/dimension outside the regions of space known as the Macroverse.
But, the film makes clear, It (sometimes written as “IT”) isn't just a clown. Oh no. As detailed in King's novel, he's an ancient, cosmic being, described in the novel as an “Eater of Worlds”, who is able to adopt a variety of nasty guises.
A neighbor witnesses his disappearance, but the fact his body is never found gives Bill hope Georgie somehow survived. Pennywise prays on this in the film, using that hope to lure Bill in the finale. Bill later finds the tatters of Georgie's coat and finally accepts his brother is gone.
Pennywise had targeted Georgie when the boy was too young to know any better or fight back. In the clown's most contemptible murders, Pennywise did not rely on visions or fears to lure Georgie in; instead, Pennywise exploited Georgie's trust and turned it into a fatal weakness.
In the novel, It's origins are nebulous. He took the form of a clown most frequently, Mr. Bob Gray or Pennywise, but his true form is an ancient eldritch entity from another universe who landed in the town that would become Derry by way of an asteroid and first awoke in 1715.
Answer and Explanation: No, Stephen King's It is not based on a true story. King had the idea for It when looking at an old wooden walking bridge in 1978 near his home in Boulder, Colorado.
While he comes close to presenting as the real Georgie, it was his fatal mistake of calling the boat “it” instead of “she” that caused Bill to acknowledge that it was Pennywise in disguise. Bill shoots the look-a-like, and the Losers have an all out brawl that defeats the creature for the time being.
