A Nightmare On Elm St. (original)
Scream
V/H/S/ (it's ok, pretty gory)
Paranormal Activity (good jumpscares)
The Exorcist
Saw
Saw II (everything after sucked, but if you like random gore, maybe)
Cabin In The Woods
Evil Dead (original)
House of 1000 Corpses
Rosemary's Baby (sorta long)
Zombieland (more of a comedy, but plenty of gore)
Also on youtube there's some good horror series like Marble Hornets (slenderman based show) and Black Box Tv (short horror films)
Hope that helps!
The Purge
The Shinning
Wrong Turn
The Grudge
The Exorcist (1973)
The Ring is the scariest movie I have ever seen. I watched it years ago and it still scares me when I think of it. Plus, it has a sequel (The Ring 2) I never watched it cause I was too traumatized from the first one but I heard it was even scarier.
REC. Its in spanish (its a hispanic movie) and from 2008. One of the best zombie movies I've ever seen
paranormal whacktivity
Dead And Buried.
Im tired of these clitche horror movies for teens. i want to see something to will help me not sleep at night. im talking bloody, violent, graphic, horror with monsters and ghosts and stuff. What can i watch?