Giving the end away.
I bought this movie a few years back on UK home video (Medusa).
Naturally, I read the back cover before buying it and it totally gave the final twist away.
I can't remember what it says, but it tries to be cryptic. I read it and thought "So the kids telling the stories are dead/have been killed!"
I remember letting some people from college borrow it and warned them not to read the back cover because it ruins the surprise....doh!
"Not The Gold!!" - Augustus Steranko.