The keyword term is a compound noun phrase. Its primary grammatical component and conceptual main point is the head noun "scene". The words "Patriots Day," "movie," and "roof" all function as adjectival modifiers that specify and narrow the identity of this noun.
A grammatical analysis reveals a hierarchy of modification. The core element is the noun "scene." This noun is first modified by the attributive noun "roof," creating the more specific concept of a "roof scene." This two-word unit is then further modified by the attributive noun "movie," defining it as a cinematic event. Finally, the proper noun "Patriots Day" acts as a noun adjunct, identifying the specific film to which the "movie roof scene" belongs. Each preceding word serves to add a layer of specificity to the final head noun.
For the purpose of an article, this grammatical structure dictates that the central subject is the specific narrative, visual, and thematic elements of that singular event within the film. While context about the movie or the setting is relevant, the core topic is the "scene" itself. Treating "scene" as the main point ensures the article directly addresses the user's search intent, which is to find information about a particular sequence of action, rather than a general review of the film.
