The document analyzes and summarizes three film posters:
1) The poster for Shutter Island uses conventions like the main actor's photo and information on roles. It effectively conveys the horror thriller genre.
2) The La La Land poster depicts the iconic dancing scene but leaves out some conventions. It aims to portray the film as unique.
3) The Inception poster follows conventions with colors, roles, and a memorable visual that identifies the action/adventure genre.