Writing or analyzing a screenplay is very different form writing or analyzing a novel or stage play. For the most part a novel is driven by action which takes place inside the character's head, and is often called the "mindscape of dramatic action." The action of a play occurs on stage
while the audience eavesdrops on the lives of the characters. Therefore, the driving force of a stage play is the "language of dramatic action." A Screenplay, however, is largely a visual medium and is, therefore, driven by the "images of dramatic action."
Note that in a screenplay it is possible to zoom in on one aspect of the setting, such as a ticking clock, a smoldering cigarette, or a character's expression in order to highlight its significance to the overall plot. In order for the director/writer of a stage play to achieve the same effect (since the objects remain at a fixed distance from the audience) a character must mention the object to focus the audience's attention - "Is that clock right? It can't be eight already." In a novel the audience cannot see the clock on the wall, and as such the clock, the time, its meaning must be filtered through a character's or a narrator's consciousness.