Is There Consistency in the Story of Harry Potter?

"I think i completely agree with you about like, ok, if you set up this, like, good lore system and you stick to it, it can lead to creative story telling," he says. "But at the same time, i think i'll acknowledge that when other elements of the movie are weigh stronger, they can make you forgive and forget those consistencies." He adds: "So faking change it? Well, it's hardit createv in this case it woldt have been hard".