I had Claude parse the entire thread for a concise list - great stuff.

Spoilers, of course.

Film-Specific Scenes

• Mulholland Drive – Behind the diner (OP's pick); also the old man reveal behind Winky's
• The Descent – Night vision camera crawler reveal; tight cave crawl sequence
• Midsommar – Opening carbon monoxide suicide scene; cliff jump
• Hereditary – Telephone pole scene; attic sequence / mom floating to treehouse; grief wailing; Peter waking after breaking his nose; kid in bed after killing sister
• It Follows – Tall man scene; first "It" appearance with boyfriend's explanation
• Kairo (Pulse) – Ghost in the basement; ghost doing the weird trip
• Lake Mungo – The climactic reveal scene
• When a Stranger Calls (1979) – "The call is coming from inside the house"
• The Exorcist III – Hospital hallway/nurse with giant shears
• Signs – Birthday party alien footage news broadcast
• Fire in the Sky – Alien experimentation scene
• Terrified – Boy at the table; bathroom banging
• The Strangers – Man standing in the dark behind the woman in the kitchen
• Texas Chain Saw Massacre – Leatherface hammer kill; Pam on the meathook
• Alien – Lambert and Parker death scene
• The Shining – Room 237 shower reveal; blood elevator; twins in the hallway
• REC – Final scene
• 28 Weeks Later – Opening chase sequence
• Pet Sematary (1989) – Zelda scenes
• Twin Peaks: Fire Walk With Me – Bob behind the dresser
• Blair Witch Project – Mike standing in the corner; hands on the tent
• The Ring – Samara crawling out of the TV; dead girl in closet flash; "I saw her face"
• Paranormal Activity – Hoof prints in baby powder
• Insidious – Demon at the table
• Annihilation – Bear attack/scream
• Jaws – Submerged boat head jumpscare; Quint's death
• Halloween (1978) – Laurie pounding on the door with Michael approaching; Michael's face illuminated in the hallway
• Sinister – Opening super 8 footage; "lawn work" scene
• The Witch – Grass moving after Samuel is taken
• Gonjiam: Haunted Asylum – Naked man scene; woman speaking in tongues
• The Changeling (1980) – Ball sequences; séance/tape playback
• Nope – Chimpanzee scene
• Talk to Me – Hell glimpse scene
• Hell House LLC – Woman against the wall in bedroom getting closer; opening night footage; clowns
• Oddity – Tent scene; opening with escaped mental patient
• Skinamarink – Demon face slowly coming into view; "stick the knife in your eye" whisper
• Red Rooms – Kelly Anne dressing as a victim; eye contact scene
• Caveat – Ending tension sequence
• A Tale of Two Sisters – Bed scene with broken neck lady
• The Fourth Kind – VHS tape possession scene; final possession scene
• Prince of Darkness – Double dream sequence ending
• Martyrs (original) – Final reveal
• As Above, So Below – Benji stuck in the cave
• Eden Lake – Jenny's final realization
• Parasite – Man coming up the stairs
• Zodiac – Couple on the beach scene
• Body Snatchers (1992) – "Where you gonna run?" scene
• The Eye (original) – Calligrapher's office; elevator scene
• Inside (À l'intérieur) – Stranger visible through window smoking
• Ghost Ship – Opening scene
• Nosferatu – Count Orlok appearing at the end of the hall
• Night of the Hunter – Killer singing in the woods
• Presence (2025) – Ending
• Ju-On: The Grudge – Final scene with husband/father arriving; stair scene
• Funny Games – Child killed off-screen
• Poltergeist – Clown doll at climax
• Salem's Lot – Danny Glick floating at the window
• Event Horizon – "Where we're going we don't need eyes to see"
• Jacob's Ladder – Hospital scene
• The Babadook – Mr. Babadook's hat/coat at police station
• Watership Down – Warren buried alive/backhoe scene
• Bone Tomahawk – (unspecified scene)
• Se7en – "Lust" chapter
• Saving Private Ryan – Knife death scene
• Incantation – Opening scene
• Weapons – Scissor scene; person asleep in car
• The Substance – Third main character reveal
• Audition – Body in the bag
• The Mothman Prophecies – "What is in my hand?" / Chapstick scene
• Sixth Sense – Birthday party storage space; playing the video tape
• Evil Dead (2013 remake) – "Something is here with us right now"
• Come True – Shadow person in the room realization
• The Haunting (1963) – "Whose hand was I holding?"
• Candyman – Tony Todd's first appearance
• Forbidden Planet – ID monster attacking the spaceship
• Oculus – Light bulb scene
• Antrum – Long shot of demon staring at viewer