The faceless force pounding at the Door in the original The Haunting - I was dozing off, and had the stereo cranked-up - prime heart-attack material!
The scene in The Omen, when David Warner and Gregory Peck are sorting through the belongings of the unfortunate Priest. They're beginning to put the pieces of the puzzle together, when Warner produces a photograph he'd rather not have taken... Gives me the creeps thinking about it! Honorary mention goes to the Graveyard scene - the general look, feel and inhabitants of the place, not to mention the revelation!
The Raincoat from Don't Look Now- self-explanatory really...
The 'Subway' scene from An American Werewolf In London - you could tell the guy was s**ting himself the way he hit the Escalator like a sack of spuRAB!
Red Rum Red Rum- boy that wee fella could peddle that Tricycle...
The bizarre figure from The Exorcist 3, you only seen it for a split second, but the fact you had absolutely no idea what the hell it was scared the bejesus out of me...
Salem's Lot, when the mist rolls in, followed by Dracula Junior, as he draws his nails across the window...
A whole heap of scenes from The Fog. Especially the scene where Jamie Lee and Tom Atkins shack up for the night, only to have someone knock-knock-knocking at the front door, and a similar scene featuring the Weather Man...
The 'running through the wooRAB screaming' scene from A Blair Witch Project...
The last 15 mins of Requiem For A Dream...