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An author may let us see the "whole picture" of the story he is telling, or only fragments of it. This depends on the point of view he chooses.

The limited point of view
External point of view:
everything that happens is perceived through the eyes of an external observer who simply states what he sees in a detached and objective way, without commenting or giving any insight into the character's feelings.
Internal point of view: the reader has access to what is experienced, thought and felt by a single character (first- or third-person) within the story, who is sometimes referred to as the focus or center of consciousness.

The omniscient point of view
This is when the narrator knows everything that needs to be known about the agents and events; this means that he is entirely free to move in time and place, and to shift from character to character, reporting on what he chooses of the speech and action.
Within this mode, ordinarily, all the omniscient's narrator's reports or judgments are to be taken as authoritative.

 

In which category would you put the narrative mode in Blade Runner?