The site recommends 6+ but I don't believe it's enforced, just recommended
My daughter has a fantastic attention span (she will sit and do puzzles aimed at 5yo) and I have taken her to the cinema before where she has been enamoured for 2 hours. So I have absolutely no concerns about her being well behaved and enjoying the show.
I just want to know if it's too scary?
I went to see it in NY years ago myself but I can't really remember it except I thought it was fantastic