The keyword phrase "patriots day film based on true story" functions grammatically as a noun phrase. The head noun, which is the central subject, is "film." The other words and phrases act as modifiers that specify and describe this core noun.
A breakdown of the phrase's components clarifies its structure. "Patriots Day" is a proper noun used as an attributive noun (or adjective) to pre-modify "film," identifying its specific title. The component "based on true story" is a participial phrase that post-modifies "film." This adjectival phrase provides essential information about the film's nature and source material, functioning as a reduced relative clause (e.g., "a film which is based on a true story").
Recognizing the term as a noun phrase is essential for the article because it identifies the primary subject of discussion: the cinematic work itself. This grammatical focus dictates that the article's main point is the analysis of the filmits production, narrative, and characterizationas framed by its specific title and its claim to historical accuracy. The analysis should therefore center on the intersection of cinema and reality, rather than treating the historical event as the sole subject.
