The document discusses conventions used in film posters. It analyzes posters for the films White House Down and Rambo. The White House Down poster prominently features the two main characters amid explosions and rubble, clearly depicting an action scene. The Rambo poster more subtly shows men with guns in the background while focusing on the title character's dirty face, indicating he is in war without explicitly showing violence. Both posters follow conventions of making the main characters the largest and first images seen to identify them and the genre.