King decided for IT to predominantly take the shape of Pennywise the Dancing Clown because he believes "clowns scare children more than anything else in the world." IT influences the adults of Derry to passively ignore it and not interfere with his attacks on Derry's children.
Ultimately, Stephen King's inspiration for Pennywise was derived from an array of sources ranging from real-life murders to far less sinister clowns. At the end of the day, his main reason for making the central creature of IT a clown was his own fear of them.
Pennywise pretty much made Derry the perfect place for a creature like itself to live, and with the whole town under its control and with a lot of children (and adults) to feed from, IT didn't really have reasons to leave Derry.
Since Pennywise's true identity is unclear, due to its shape-shifting abilities and being from another universe, ITs real name and species are also called Deadlights, but few know this, which is why it is referred to as IT.
Stephen King's IT introduced readers to a one-of-a-kind creature that can take any form, the most common one being Pennywise the Dancing Clown, and as menacing as it is, this creature has one big enemy it's truly scared of: Maturin, the turtle.
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.
The movies have a different approach when it comes to the Pennywise the clown origin story, with IT's name being Robert "Bob" Gray. In IT: Chapter 2, there is a lengthy exposition section explaining the origins of Pennywise the Dancing Clown. There was a human Pennywise the Dancing Clown, but IT just takes his form.
Finally, Pennywise tears off Georgie's arm to make sure Georgie knew he was going to die. Does Pennywise (IT) have to eat and kill only children? No, that's a common misconception, IT only prefers to hunt children because they taste better and IT has more fun with their fears.
Another explanation is connected to the Turtle and the cosmic side of IT and Stephen King's Macroverse, suggesting the Losers as the “chosen ones” that were guided and thus protected to an extent by Maturin, the only creature IT is afraid of.
Pennywise targets children instead of adults because they are easier to scare and manipulate. Their fears are often simpler, more direct, and easier for Pennywise to exploit.
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.
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.
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.
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. In the moments before Pennywise died, his fear is reminiscent of Georgie's own, therefore closing the cyclical nature of Pennywise's murders.
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.
Also in the 2017 film, Georgie's death is changed. As well as having his right arm bitten off, Georgie is trying to crawl away but he was dragged into the sewers and devoured by Pennywise, with an unnamed older woman and her cat being the sole witnesses of the horrific scene, including before Georgie lost his arm.
According the the Wiki set up to explain It and his powers, the red balloon is an illusion — one of many — that can be created to lure It's victims to their deaths .
It can manipulate weak-willed people, making them indifferent to the horrific events that unfold, or even serve as accomplices. In the novel, It claims that its true name is Robert "Bob" Gray, but decided to be named “It”. Throughout the book, It is generally referred to as male, usually appearing as Pennywise.
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.
Though there are some IT characters just as scary as Pennywise, the film's main villain proves to be its deadliest, with a kill count that actually reaches into the tens of thousands. Reddit user u/angelholme estimates that Pennywise actually took the lives of between 12,117 and 18,011 people.
I recommend this film to everyone who loves slightly disturbing films and TV shows like me but for anyone under the age of 13 you really should not watch it. It's very gory and contains adult language.
He can kill you if he wants to anytime and doesn't care. Although, if you are not scared, he will either leave you be for a little while or just kill you in the instant . Remember, the only way to avoid him is to keep a close group of people and avoid wet and damp places as much as possible.
