Harry Potter and the Deathly Hallows - Part 1/Nightmare Fuel


 * The scene with the locket Horcrux trying to turn Ron against Harry in a last ditch effort to defend itself. Ghastly spectres of Ron's friends and family tell him that he's worthless compared to Harry.
 * That Eldritch Abomination swirling cloud of darkness that exploded out of the locket was freaky as hell. Swirling, talking, with things that looked like heads and bones thrusting out of it before disappearing... That scene wasn't scary in the book, but in the movie...
 * Speaking of the locket, you know when Harry finds the Sword of Gryffindor in the frozen pond and jumps in to get it? When he gets close enough to the sword, the locket yanks him back. It doesn't get repelled—it drags him away of its own volition. It knows what he's trying to do. Just that is scary enough, but Harry looked like he was getting strangled and quickly abandoned the sword to claw desperately at the ice. I'm seriously glad that Ron came back in time. Five more minutes and Harry might have drowned.
 * Here's a nice subliminal scare in the movie. When the locket opens, the shot lingers on the open locket for a split second before the darkness erupts out. Pause it there and you'll see an eye inside the locket looking right at the camera.
 * Death, as portrayed in the movie's animated version of The Tale of the Three Brothers. The atmosphere in that scene is generally creepy, but the way that hunched-over, skeleton-like thing moves...
 * Try not to think of how much Death looks like a Dementor... although, to be fair, Death is rather more True Neutral than anything else, if something of a Jerkass Genie.
 * Dementors look like Death, not the other way around.