A pretty solid set of moments compiled.
http://www.ifc.com/news/2009/10/25-s...ror-movies.php
In case you don't want to rummage through the list, the ones which will immediately strike your mind include -
"opening the ark" from Raiders of the Lost Ark,
"Wicked Witch's ultimatum" from The Wizard of Oz,
"what happened to Saskia" from Spoorloos (aka) The Vanishing,
"Scottie's nightmare" from Vertigo,
"Ellen letting Danny drown" from Leave Her To Heaven,
"Private Pyle killing himself" from Full Metal Jacket,
"Chekov given a brain eel" from Star Trek: The Wrath of Khan,
"The Baby crawl" from Trainspotting,
"The Winkie's dream" from Mulholland Drive,
"Curb stomp" from American History X,
"Just another day at the Department of Information Retrieval" from Brazil,
"He got a real pretty mouth, ain't he?" from Deliverance,
"Large Marge" from Pee-Wee's Big Adventure,
"Nicky Santoro in the cornfield" from Casino,
"The Tunnel scene" from Willy Wonka and the Chocolate Factory,
"Everybody hurts" from Requiem of a Dream,
and
"The eye slice" from Un Chien Andalou.
Check them out, and if you have one in mind, post it.