DD wanted to read the series when she was four but I didn't think she was ready.

She read Book One through Four at age five on her own, although there were a few chapters I insisted on reading together and a couple of chapters scared her enough that she asked me to sit right next to her. I am not comfortable with her reading Book Five and beyond until she is seven or older.

I've only shown her the first two movies and that was after she read the books over and over.