SPOILERS
Now I just want to say, I'd give this movie a 4.5, but I can't.
Anyways, this movie was really great. The leading actor did a really great job along with his sister. They were both incredible for the age that they are. But obviously the best performance of this movie goes to Ethan Hawke's character: The Grabber, who is absolutely phenomenal because of how creepy he is and how evil he is. I also dug the supernatural vibes, even though I thought they went a little overboard with it. I don't really have any flaws with it, but the Grabber brother should've been able to find out that his brother was kidnapping and killing children, and that subplot doesn't really go anywhere and he is murdered. But, i really enjoyed the 3rd Act with Finney escaping and killing the Grabber after all the tips the previous victims giving him hints on how to escape and defeat the Grabber. So, overall, I thought this was a very creepy movie with a great payoff, and even better performances throughout the entire movie. :)
So I'd give this probably an 89%