The document provides an analysis of the trailer for the film Paranormal Activity 3. It summarizes that the trailer is for a supernatural thriller film and the third installment of a trilogy. The trailer uses techniques like diegetic screaming, shaky camera work, and dark imagery to create tension and scare the audience. Intertitles are also used to provide context and leave the viewer wanting more. Overall, the analysis finds that the trailer effectively markets the film to previous fans but may not attract new viewers.