IT: Chapter Two's Pennywise the Clown is one of the scariest movies in the history of horror films. Although the first film in the franchise left his backstory rather vague, the second installment in the series looked more at his past, with the grown-up Losers' Club trying to figure out more about the monster's backstory. We've created a video to help explain Pennywise's background and what you might not have realized about it.

Pennywise is, of course, not really a clown. Instead, he's actually an ancient, unimaginable horror from a dimension called the Macroverse. Although IT: Chapter Two didn't get much into the cosmology of the series, there was one scene that definitely stood out in this regard. When Beverly Marsh visits her old home, she finds a creepy old woman named Mrs. Kersh. She finds a photo of a man who looks like Pennywise, and Mrs. Kersh talks about how her father was in the circus. There's some question as to whether Pennywise was ever really a person, as he does take the form of his victims, but don't feel sympathy for who Pennywise was when he was a person, as they're simply illusions created by It in order to frighten its prey.

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Check out the video below for more information about Pennywise's tragic backstory in IT: Chapter Two.

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Both IT films are based on Stephen King's 1986 novel of the same name. Although the first movie was critically acclaimed and became one of the highest-grossing R-rated films ever, the sequel has fared a little worse. However, IT: Chapter Two is still having a solid run at the box office, especially considering its high MPAA rating.

It: Chapter Two stars Bill Skarsgård, James McAvoy, Jessica Chastain, Jay Ryan, Bill Hader, Isaiah Mustafa, James Ransone, Andy Bean, Teach Grant, Jess Weixler, Will Beinbrink, Xavier Dolan, Jaeden Lieberher, Sophia Lillis, Jeremy Ray Taylor, Finn Wolfhard, Chosen Jacobs, Jack Dylan Grazer, Wyatt Oleff and Nicholas Hamilton.

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