Explore how this is created by analysing technical details.
Briony and Cecilia's both have different experiences of the first scene where Cecilia gets into the pond. The disparity between the points of view is made clear by Briony's point-of-view shot and the physical gap between the two observers. The scene plays into Tsetsam Totorov's theory of equilibrium by disturbing the balance of Briony's life. Admittedly the 'point of conflict' does come very early on in the film but that's because it's the starting trigger which sets the events of the film in motion.
Briony's character is explained very quickly at the beginning of the film. One of the techniques for this is to associate her with a typewriter sound which denotes writing, and sometimes has a hurried pace to it to make the film seem exciting. This sound is used to great effect in a scene at a hospital where only the sound is heard and Briony is not seen but the link is made and the audience knows she will appear. She's also portrayed throughout the film as an observer, and one of the techniques used was to include lots of close-ups. Extreme close-ups of the eyes also denote an observer.