Some stories are beloved by their fans. This isn’t a terrible thing, but it can make stories difficult to adapt for the screen. What parts of the story can you trimmed down? What parts can be excised completely? These are difficult questions, and if your viewers are those that love the text their answer will be "nothing."
It Chapter Two is a long movie. It’s not a poorly made movie or a poorly acted one, but it is long. Too long. Like, way too long, and I feel like the filmmakers didn’t have adequate answers to those two questions I posed above.