34. ‘The Omen’ (1976)
Memorable quote: “Look at me, Damien! It’s all for you!”
Scare factor: Forget all the stories about bad luck befalling the cast and crew during the movie’s production: this Gregory Peck-helmed thriller is scary enough as merely a film. Remember: Never secretly adopt someone else’s child without meeting the kid’s parents first — or at least seeing a picture. If creepy children scare you, then young Damien will be sure to burrow a hole in your brain and come out in your nightmares. Oh, and by the way, if decapitation scenes get your blood pumping, this one has one of the all-time greatest.