The document discusses how the movie industry uses synergy to promote films. It provides the example of Public Enemies, which used a trailer, posters, and magazine cover to create awareness for the movie. These promotional materials all had a similar vibe and informed audiences about the gangster genre of the film. Key details like the cast, director, and release date help target the intended audience. The synergy campaign must portray accurate elements from the movie across all promotions to manage audience expectations.