The document provides information about how movies introduce their genre, narrative, atmosphere, and characters to audiences. It analyzes two different movie openings: one that suggests a comedy genre about a teenage character in school, signaled by a fun song, colorful foods, and a comical student ID; the other hints at a horror genre involving a zombie apocalypse, with screaming sounds, blood writing, and scenes depicting riots and the White House under attack to set a tense and fearful atmosphere. Soldiers and zombies seem to be significant characters.