The Reckoning: the Ugly Concluded
Sites change in size. The town is apparently much larger in the book, than it is in the film.
And they change in location. The castle is some distance from the town in the book, but it is right next to the town and looms over it, in the the film.
The characters change in age and appearance. The corpulent, older King's Justice of the book, becomes a middle-aged, more muscular King's Justice in the film.
And the reverse is also true. The preteen 12-year-old Thomas Wells of the book, becomes a teenager in the film.