The keyword phrase "pelicula 11 sep" functions grammatically as a noun phrase. The core component and main point of the phrase is the noun "pelicula."
In this construction, "pelicula" is a Spanish noun meaning "film" or "movie." The subsequent component, "11 sep" (an abbreviation for 11 de septiembre, or September 11), acts as a postpositive modifier. It functions adjectivally to specify the subject matter of the film. Therefore, "11 sep" narrows the general category of "pelicula" to a specific type: a film concerning the events of September 11th. This structure, a noun followed by a specifier, is a common linguistic shortcut, especially in search queries.
For the purpose of an article, treating the entire phrase as a specific subject-based noun is the most practical application. The analysis confirms that the article's central subject is a tangible cultural object (a film), which is defined and categorized by a historical event (September 11th). The focus should be on the "film" aspect, as it is the grammatical head of the phrase.
