The document analyzes the trailer for the horror film "Insidious". It finds the trailer effectively promotes the supernatural horror genre through its use of iconography, technical elements, and conventions. It establishes the film's genre through demonic imagery and a possessed child. Sound and editing build tension, like amplified noises. Mise-en-scene sets an isolated setting and establishes the family's equilibrium before disruption. Cinematography and lighting create meaning and an unsettling atmosphere through shot types and ambient lighting. The trailer follows horror trailer conventions but also breaks some to surprise viewers. Overall, it effectively lures audiences through its scary yet exciting presentation.