The document analyzes codes and conventions for thriller movie posters. It discusses how posters advertise films physically by being placed in public spaces. It then summarizes the common elements found in 9 example thriller posters, including having the protagonist in the foreground/center, including an attention-grabbing tagline for 7 of the posters, prominently featuring the lead actor's name in bold text matching the title font for visibility, using contrasting colors like black and bright hues to make the title stand out, and utilizing a large central image to visually represent the film's theme or tone.