The document discusses how the trailer for The Maze Runner focuses on establishing the main character and showing the setting through shots. It aims to make the audience feel like they are experiencing what the characters are going through. The purpose is to promote the movie and increase publicity/sales by getting people to see it in theaters or buy it. The intended target audience is described as mainly ABC social class adults/men aged 15-34, but potentially most appealing to teenage males who can relate most to the teenage characters.