The document outlines the basics of screenwriting including concept, characters, plot, and structure. It discusses that a concept should have a compelling story idea and characters that audiences will want to see. Characters include a protagonist and antagonist. The plot is driven by what happens to the main character and contains conflict. Screenplays follow a three-act structure with Act I introducing the world and characters, Act II showing what changes the character, and Act III containing the climax and conclusion as outlined by Aristotle.