Corrected entry: The part of the movie when they are kids is supposed to take place during the summer, but many of the scenes take place in school. They would not be in school during summer vacation.
Corrected entry: When the grown-up Richie is driving by the paramount, it says "RIP Richie Tozier, Born 1950 Died 1990" but if the part when they are kids occurs in 1958, then he is younger than Eddie. But he is supposed to be older, not younger. If he was younger he'd be only 8 but he is getting out of 6th grade.
Corrected entry: In the shot where the woman finds her dead husband in the bath, there is a plant pot outside the bathroom which has the clown's red nose and his bobbles from his top as the flowers.
Corrected entry: When Henry is in the psychiatric hospital, Belch comes out from under the bed and his head leaves a long mark on the floor; in the next shot, it's gone.
Corrected entry: In the scene at the end of the movie where they just killed IT and Audra comes sliding down off the cave wall into Bill's arms,she's covered in web as she's falling but when the scene cuts to Bill catching her in his arms,there's no web on her at all.
Corrected entry: Pennywise appears in the basement to Richie as a werewolf because he was scared of the werewolf in the film. But in the cinema scene we see that Richie isn't scared at all, it is the little asthma kid who's afraid.
Corrected entry: When they are in the hotel they all talk about everyone having the Derry disease when no one will help. But in one previous scene, a man tells the three bullies to stop when they are bullying the black kid. So not everyone has the Derry disease.
Corrected entry: Near the beginning of the film, in the first flashback, Georgie is sailing a paper boat in the rain. In several spots it is obvious the rain is fake. For as heavy as the rain is, there is a lot of bright sunlight on the ground. Real storms' overcast conditions prevent this. Also, the rain is falling in waves, as if being sprayed from something, not falling from clouds.
Corrected entry: In the scene where the children are down in the sewer toward the end of Part I, young Stan is repeating his scout's oath over and over. His lip movements don't match the sound.
Corrected entry: When the grown up kid go back to the town one of the men sees It the clown digging graves. All the graves had crosses above them. he asks the man to pick one, except the one on the end which had Stan in it. But Stan was Jewish so shouldn't he have the Jewish star above his grave?
Corrected entry: In the scene where Ben is happily walking to the library after school and repeating "Beverly Marsh, Beverly Marsh", we see Henry Bowers, Victor Criss, and Belch Huggins leaning against a rail waiting for Ben...wasn't Henry supposed to stay an hour after school for making fun of Ben during class when Ben was introducing himself? Surely Ben wasn't standing there gaping at those snobs making fun of Beverly's dad for an hour?