even though this movie is technically not under the horror genre, it is one of the scariest films i've seen. watched it over a year ago and some of the images still haunt me. though, it is amazing.
"During Ellen Burstyn's impassioned monologue about how it feels to be old, cinematographer Matthew Libatique accidentally let the camera drift off-target. When director Darren Aronofsky called "cut" and confronted him about it, he realized the reason Libatique had let the camera drift was because he had been crying during the take and fogged up the camera's eyepiece. This was the take used in the final print."
not sure how true that is (^), but it's interesting and beautiful regardless.