The primary grammatical component and main point of the keyword term is the noun "reviews". The preceding words, "Patriots Day" and "film," function as modifiers that specify the subject, but the core concept is the collection of critical assessments.
In this noun phrase, "reviews" serves as the head noun. The word "film" is a noun adjunct, acting adjectivally to specify the type of reviews. Subsequently, the proper noun "Patriots Day" modifies "film," identifying the specific work being reviewed. This creates a chain of modification ("Patriots Day" "film" "reviews") where each preceding term narrows the scope of the final, principal noun.
Understanding "reviews" as the main point is crucial as it dictates that an article's central theme must be the critical reception and analysis of the motion picture. The focus should be on examining, comparing, and synthesizing the arguments, opinions, and evaluations presented by various critics, rather than providing a new summary or critique of the film itself. This grammatical determination establishes the article's purpose as one of metacriticism or review analysis.