The document discusses the effectiveness of film posters and radio trailers in promoting movies. It argues that posters are effective because they can be widely placed in public areas like bus stops to reach a large target audience, and help make the film title memorable. Radio trailers also promote films by providing short clips and descriptions to intrigue listeners. While both posters and radio spots help sell films, posters may reach a broader audience since not everyone listens to the radio. The document concludes by comparing its own film poster to The Dark Knight poster, noting similarities in imagery and focus on the antagonist but differences in use of quotes.