The document discusses several theorists who have analyzed narrative structures in media. Vladimir Propp analyzed Russian fairytales and identified character roles like the hero, villain, and donor. Tzvetan Todorov suggested most narratives follow an equilibrium-disequilibrium-new equilibrium structure. Roland Barthes identified five narrative codes used in stories: action, enigma, symbolic, semic, and cultural. Claude Levi-Strauss examined how stories reflect the values and myths of cultures through binary oppositions like homesteader/native American. Theories by these thinkers can be applied to analyze the structure and themes of film openings and endings.