The story is what happens. - Example of a simple and short story line.
A linear narrative is when the film goes from start to finish. (like the example given above).
Non-Linear Narrative means More fragmented. this can be used to create more tension in the movie.
A Fragmented Narrative is when the story line is all over the place, e.g the movie Memento, by Christopher Nolan as shown above. This movie is a very useful example as the director plays on the audiences mind with a quick reference back to the past every so often in the movie.
The change from the past to the future is displayed in black and white in the movie and this is where the Writer plays on the viewers imagination.
My knowledge of narrative and genre will help me produce a good film as i can now understand how and why writers change from different scenes in a film to build up tension and anxiety within the viewer.