The keyword term "st patriots day film" is a noun phrase. The main point and core part of speech within this phrase is the head noun, "film".
Grammatically, the words preceding "film" function as modifiers that specify its type. "Patriots Day" is a proper noun acting as a noun adjunct (or attributive noun), which means it serves an adjectival role to describe the subject of the film. The prefix "st" is likely a typographical error for "the" (a determiner) or "1st" (an ordinal adjective). In either case, its function is to further specify the noun. The entire structure modifies the head noun "film," which remains the central subject of the phrase.
This analysis is crucial because it establishes that the article's primary subject is a cinematic work. The focus should be on the movie itselfits production, plot, reception, and themes. The term "Patriots Day" provides the essential context and defining characteristic of the film, but the grammatical subject, and therefore the article's main point, is the film as an entity.
