Screenwriting has developed over a century as a writing system for films. In the early 1900s, one of the first American screenwriters was paid $15 per scene. Now, popular screenplays can earn writers millions of dollars. Screenplays have a standard format including typeface, font size, and tab settings to indicate scene elements. This allows about a minute of screen time per page. Screenplays focus on action and dialogue with the action in present tense and dialogue in lines spoken by characters. They use prose to describe visuals and codified notations for transitions and emphasis. The common three-act structure introduces characters and situations in the set up, brings conflicts to light in the confrontation, and resolves conflicts in the resolution