The movies are fairly fun, but they seriously ruined a lot of stuff (mostly things involving any female character). They just seemingly didn’t want the girls in the films to be particularly good. Most of Hermione’s best lines are given to Ron in the films, for example. I don’t know how much was intentional, how much was unintentional but created by an innate bigotry, and how much was just due to the process of making the films though. Surely not all of it could be the latter.