Got to agree with some of the movies like Grudge, Ring- those have the same impact on me as Poltergeist. Phantoms has a good "what-if" to it that makes me watch it again. Event Horizon, definitely a rewatcher, but not for the thrill of getting pumped. 28 Days Later, enjoyed, the sequel doesn't exist in my opinion. Dog Soldiers I love to watch, love werewolves.
But this movie to this day I refuse to watch and have yet to finish:
The Good Son.
Beat me to it, ring. I loved Mothman Prophecies! I always thought the name was Indrid Cold, I watch that to get those chills like Poltergeist.