This document discusses narrative structure in films. It explains that narratives typically have a beginning, middle, and end, but not always in that order. Linear narratives progress chronologically from equilibrium to disequilibrium to a new equilibrium, while circular narratives begin and end in the same place. Non-linear narratives are less ordered but scenes gradually reveal the sequence of events. The narrative is shaped by story elements like characters, plot, and time structure as well as production elements such as camerawork, editing, and sound. Together with the audience's expectations and experiences, these elements form a narrative equation.