I think the theme to this movie is not knowing what you’ve got until it’s gone. It’s actively told to the audience. That theme is obviously exemplified in this scene by the actions of the main character, Jim Carrey. He is chasing after his girlfriend Clementine because he’s decided to have a procedure to have her erased from his memory. Only when he realizes that he still loves her, does he try to stop the process. It’s clear he’s trying to stop the process because he’s chasing after her and trying to get her to come with him so that they can hide from the memory erasers.
The movement within the scene reiterates the theme of the film. The main character is chasing after her because he no longer wants to erase her from his memory. Which then transfers into the theme of not knowing what you want until its gone. The scene consists of mostly simple movement when the car drives forward or when Carrey walks back and forth on the sidewalk multiple times. This action creates the feel of chasing someone also connecting to the theme of not knowing what you’ve got until its gone. The lines within the scene are horizontal. Specifically when Clementine is walking down the first sidewalk, the object behind her has horizontal lines on it which guides the audience and the camera eye to what is coming ahead; the point in which Carrey won’t be able to drive his car to follow her anymore. Once we get to the second sidewalk, we see more actual horizontal lines on the door and on the sign of the grocery story, again pointing in the direction of where Clementine is going. It helps that these lines are horizontal because when the line of movement switches and the whole scene is backwards, the horizontal lines are still following Clementine’s movements. By switching the movement of the scene, it helps to create a feeling of confusion and being lost, helping to reiterate the theme of not knowing what you’ve got until it’s gone or specifically for this scene, what it will be like once it’s actually gone. The scene then switches back to the two guys erasing the memory and this switch is part of tension and release. We feel tension while we are seeing Clementine and Joel’s chase scene, then switching to the “funny guys” we feel a relief from tension. In this scene, you are also being told didactically that he wants Clementine to stop walking away and get in the car. I.e. He realizes he wants her back because she’d gone. They are actively showing us the realization of what is gone and going back and forth between the chase of getting what you want and not getting it.