Horror serves as one of the hallmarks of the post-9/11 film movement not only as a genre but also as a powerful emotion. Charles Darwin observed that if we perceive someone who offends us as “quite insignificant, we experience merely disdain or contempt. If, on the other hand, he is all-powerful, then hatred passes into terror.”1 Terror and horror both describe reactions to offensive actions, including torture and murder. Horror, according to the dictionary, means

1. An intense, painful feeling of repugnance and fear. 2. Intense dislike; abhorrence. 3. A cause of horror. 4. Informal: Something unpleasant, ugly, or disagreeable.2