I'm on a roll - still catching up on books and movies read/watched weeks ago, maybe even months. Arlington Road - I was sure I had seen this movie before, but we watched it there on the telly a couple of months ago, and I swear to god I had no memory of it whatsoever, though I did guess the end (and I'm usually not that bright).
Jeff Bridges, Tim Robbins, Joan Cusack- great actors. The movie is an good thriller with a great plot. I jumped in my seat a few times, but nothing spooky. I'll have to wait many years before I can watch it again, though, or wait for another onset of Alzheimer, as it's all about the ending.
Don't read the full Wikipedia article, as it will tell you every last twist. I hate that!