The Ring

A creepy supernatural horror movie where a reporter and her ex-husband research this urban legend. The original Japanese legend goes that this kid was trying to record this baseball game on this TV in his cabin, but when he played back the tape, he never realized that the channels were different. Instead, he got static, strange images, and someone telling him that he would die in seven days. And sure enough, he did, and the doctors said he died of a cardiac arrest. The (Jap.) curse is that if you watch a copy of the tape, then you must make a copy and show it to someone else, otherwise you die. And in the original, the phone only rings if you watch it in that cabin. Two of the characters in the orig. were based on real people, one of whom was a psychic who was claimed to be a fraud (like the mother person in the Jap.), and then there was a person who had this psychic power (called nensha in Japanese) that required the use of a medium like a TV to concentrate her powers on (like Sadako/Samara).