Saw it at the time...

Rating: Null/10 (17 August 2004)

And was creeped out by it. I'd heard the truth about the film before seeing it, so I knew it was a fake...
However, the backstory given by interviews in the first part of the film, and then watching those interviews unfold were what MADE this film so unsettling. The final scene had me a bit haunted for days (probably because I had paid attention to what was said at the beginning).
It didn't help that I walked home in pitch dark New England fog, either.
BWP is an intentional mind-screw (since we're not allowed profanity). Rather than be the traditional hack and slash horror film, it's a horror movie that concentrates on the breakdown of the human mind in a situation of fear and panic.
Are the characters idiots for getting lost? Yes. Do you want to throttle them for being morons? Heck yeah. But their descent from somewhat annoying, but intelligent, inquisitive people into complete paranoia within a matter of days is what is so chilling.
The impact has lessened on subsequent viewings- but the lack of gore is brilliant, in my mind. Your mind has the freedom to take the images and run with them as wildly as it wants.
If you don't have the patience to watch the entire thing, just make sure you watch the beginning (interviews) and the end (the house), and just absorb it. This movie makes you think to get it.
8/10