This document summarizes conventions commonly found in movie trailers. It explains that trailers typically follow an order of equilibrium, disequilibrium, and climax. The equilibrium shows happy or enjoyable scenes to establish context. Disequilibrium then shows disaster or problems. The climax leaves audiences anticipating resolution in the full movie. Trailers are usually 2-3 minutes long, using uplifting then tense music matched with slow then fast editing to set the mood. Titles and other elements are also designed to reflect the film's genre.