We live and breath Harry Potter in our house, my 9 year old watched the first one when he was 3 and he has been addicted ever since, he had watched them all by the time he was 5 and had read all the books by the time he was 8. Declan is very mature for his age and he has watched a lot of things that he shouldnt (caught him watching predator the other night :O ) but if there is anything he doesnt understand he will always ask us so I am happy for him to watch what he wants.
I think it depends on your child. My DD is 8.5 and in no way is she ready for the films or the books. She is a highly sensitive child (and always has been) and she does not do scary stuff. At all haha. And that's okay.
My son is 4.5 and not ready for HP either though I do think he will be ready before her as he's not nearly as sensitive.
We love HP so I am looking forward to the eventual day when the kids can read/watch them but we just aren't there yet.
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