The document discusses the effectiveness of a film poster and radio trailer used to advertise a film called "Vantage Point". The film poster uses images and text to convey the mood, themes and key information about the film such as the title, actors, release date and tagline. The radio trailer is a short audio preview that uses dialogue, sound effects and music to set the scene and build excitement without revealing too much of the plot. It follows a three-act structure to introduce the premise, drive the story and end with an exciting climax.