The keyword term "patriot day movie review" functions as a noun phrase. The principal part of speech, which serves as the grammatical core and main point of the phrase, is the final word: noun ("review").
In this grammatical construction, "review" is the head noun, defining the subject as a form of critical assessment. The preceding words, "Patriot Day" and "movie," function as noun adjuncts (nouns used as adjectives) that modify this head noun. "Movie" specifies the medium being analyzed, and the proper noun "Patriot Day" identifies the specific title of that film. The entire phrase operates as a single conceptual unit whose meaning is anchored by its final component.
Understanding that the main point is a noun ("review") is crucial for the article's focus. It establishes that the article's primary purpose is not to describe an event or a film's plot, but to provide a critical evaluation, analysis, or opinion. The modifiers simply specify the exact subject of that evaluation: a critique of the film titled "Patriots Day." This dictates that the content's core must be analytical and judgmental in nature.