This document analyzes the mise-en-scene techniques used in the trailers for the films Insidious and Sinister to create atmosphere and tension. Both trailers begin by establishing the family homes as normal to contrast with the later supernatural events. Costumes and lighting are also used to portray normal families and settings in a gloomy manner. Jump scares toward the end feature threatening supernatural characters to shock viewers. Props like weapons in Sinister and a metronome in Insidious are employed to build fear and uncertainty about what will happen. Overall, the document discusses how mise-en-scene contributes to effective horror moments in the trailers.