Oh yeah the movies ironed out a LOT of this stuff. Like, the entire "Hermione discovers that there are house elves enslaved at Hogwarts and gets made fun of for trying to free them" subplot was basically removed from the movies entirely, and also the fact that werewolves are explicitly an AIDS allegory and most werewolves target children. It's disgusting garbage all the way down. Hollywood did SO much to launder Rowling's reptuation