Diegesis: the action and content of a story's world, separate and independent from the means or methods of telling it. A common crossing of the diegetic line in television these days is to have the background music slowly change to coming from a radio or headphones that the characters interact with. As background music, the characters are unaware of the tune (non-diegetic), but once they are aware of it or can interact with it, it becomes diegetic, a part of the world the story exists in. A very well-done play on crossing diegetic lines is the movie Stranger Than Fiction, where the film begins with narration, but shortly thereafter the main character suddenly realizes he, too, can hear the narration along with the audience. The line further blurs when the character being narrated realizes he can interact with the narrator and hopefully influence her actions.
No comments at this time.