What term describes the blueprints for a film's narrative and production?

The term that describes the blueprints for a film's narrative and production is the script. A script serves as the foundational document for any film, containing not only the dialogue spoken by characters but also detailed descriptions of the actions, settings, and various transitions throughout the story. It outlines the structure of the film, including the scenes, character arcs, and plot developments, which are crucial for guiding the production team and actors during the filmmaking process.

While a storyboard provides a visual representation of scenes, illustrating how shots will be framed and composed, it is not the primary document that outlines the narrative. A treatment is typically a summary of the film's premise and key plot points, but it does not contain the comprehensive detail found in a full script. The term narrative refers more broadly to the way the story is told, rather than to the specific document used in production. Thus, the script is the most accurate answer in this context, as it encapsulates all aspects necessary for creating the film.