Seymour Chatman (Sattelites and Kernels) The idea that a story has two parts which are the important parts and the embellishments.

Kernels (something that grows): Important part(s). The key parts of the film that make up the plot/narrative structure. If taken out the story or narrative would not work.

Satellites (orbit the earth, not planets or the earth they just go around): Embellishments. A satellite can add aesthetic to the story but are not needed. ‘Fluff’