The grammatical classification of the term is a noun phrase. The central element, or head, of this construction is the noun "cast," which denotes a group of performers. The subsequent words modify this head noun to specify a particular group.
A detailed analysis reveals the phrase's structure. The head noun "cast" is post-modified by the prepositional phrase "of Patriots Day (film)." This prepositional phrase functions adjectivally, specifying precisely which cast is the subject. The phrase consists of the preposition "of" and its object, the proper noun "Patriots Day," which is itself clarified by the parenthetical noun "(film)." The entire construction operates as a single conceptual unit.
The practical implication of this classification is that the entire phrase functions as a single noun unit within a sentence. It can serve as a subject (e.g., "[The cast of Patriots Day (film)] was praised by critics."), a direct object, or the object of another preposition. Recognizing it as a noun phrase is fundamental for correct syntax and for semantic understanding in contexts like digital content analysis and search engine queries, where the phrase is treated as a specific entity.
