- Structuralism explores how meaning is constructed within a culture through systems of signs and symbols. It examines how the positioning and context of objects can influence their meaning. - The Halloween trailer uses iconography and structuralism to adhere to the codes of the slasher horror genre. Shots of a masked killer stabbing a victim with a knife establish the psychopathic killer trope. - Non-diegetic music builds tension as the killer stalks victims. Contrasting lighting draws attention to the masked killer and their prey. The murderer's dual identity as a child and adult subverts expectations and suggests a troubled psyche.