Theories of Narrative:

I want a more structured story line for my trailer as the human mind needs narrative to make sense of things. We seek a beginning, middle and an end. The structures will help, lock the narrative into the trailer.

This is the first narrative theory I researched by Vladimir Propp,

who considered that there are specific character roles that 

help move the narrative along.

This theory, is for the "happy ending type films" . What the
character does in the film to help it move it along. These
characters are crucial to the story line, therefore I will be
introducing these characters for a successful story line.
I will inflict this this in my trailer by having Tanja
as the "princess" and Gabriel as her "hero" and
the bullies which I am undecided of their
naming will be the villains. I feel that these
specific characters are vital for
setting up the plot & narrative.

The second theory I looked at to inspire the structure and narrative was by TZVETAN TODOROV who proposed a theory in 1969 that all  films has the same narrative pattern, that they follow. These were arranged n 5 stages - 

1. A state of equilibrium (All is as it should be.)

2. A disruption of that order by an event.

3. A recognition that the disorder has occurred.

4. An attempt to repair the damage of the disruption.

5. A return or restoration of a NEW equilibrium

This theory states that there is a circular structure through

a film. The narrative attempts to restore the equilibrium Torodov

argues that narrative involves a transformation and the characters 

are transformed throughout the disruption. This disruption take

characters out of their comfort zone or normal social events.