"So on my screenplay, on the left-hand side of the page, I will put all the ideas that refer to the scene next to it so I have some sort of pictorial reference"

Adrian Lyne is suggesting that when composing a movie script, it is advantageous to have a visual referral to the scene that is being composed. By positioning all the concepts that describe the scene on the left-hand side of the page, the author can easily refer to them while composing the scene. This enables the writer to have a better understanding of the scene and to be able to compose it more precisely. This also assists the author to monitor the concepts that are being utilized in the scene and to make sure that they are all being used in the correct order. By having a visual referral, the author can likewise guarantee that the scene is being written in a way that is consistent with the ideas that are being used. This assists to produce a more cohesive story and to make sure that the scene is being written in a way that is true to the concepts that are being used.