It's been a while since I had first read The Amulet and I can't recall thinking of Miyazaki's work. Which I am a huge fan of and have seen all of the mentioned works. It's hard to say what I first thought of on the matter.
However after a few pages the story didn't feel that original. I had high hopes for it too being that I had heard about it prior to its realease. I must say I was disapointed at some of the fantasty aspects. Which as said didn't seem all that original or clever. It's a good story mind you it's just one more geared for kids.