“A Nightmare on Elm Street,” if you’ve seen it, what are your thoughts on it?

Ha, name at least one truly scary horror movie!

"The Ring," for example. "Pet Sematary" is a classic. "Resident Evil" (but not to be confused with it). I can't think of any others right now... but I'm sure there are more ;)
Also, the movie "The Others" is creepy... although it's not really horror as a genre.
"The Book of the Dead" – there are several of them... the one that tells three stories from a forbidden book.
There you go :) These are the things that scare a dragon ;)