I much prefer the novels to the films, which I simply don't think are as good (save the second Deathly Hallows film). But the John Williams scores in films one and three are absolutely outstanding. :)
Also, not suitable for children? Seriously? Mine lapped up the novels when I read them to them between the ages of about nine and twelve or so. Then I showed them the films. :)
You might enjoy this series I wrote (this is part 4 of 6, and mentions Harry Potter). :)
https://medium.com/fan-fare/how-i-brainwashed-my-children-with-great-films-part-4-b39861cecd27