The keyword term functions as a proper noun phrase. It is a compound construction that identifies a specific subject of inquiry: the intersection of the 2016 film Patriots Day and the critical evaluation associated with the legacy of film critic Roger Ebert. The phrase acts as a singular conceptual unit, with "Patriots Day" serving as the primary subject and "Ebert" acting as a qualifier specifying the desired critical perspective.
A critical detail in analyzing this term is the anachronism involved. Roger Ebert passed away in 2013, while the film Patriots Day was released in 2016. Consequently, no review of the movie was written by Roger Ebert himself. The search query instead points toward a review published on the website he founded, RogerEbert.com, which continues his work through a staff of critics. The specific review for this film on that platform was written by critic Matt Zoller Seitz, who awarded the film three out of four stars.
The practical application of understanding this noun phrase is in recognizing user intent. The term signifies a search not for a person, but for a trusted brand of film criticism. "Ebert" has evolved from a simple proper noun into a synecdoche representing the entire critical institution and standard of quality he established. Therefore, the phrase is a request for the official review from the RogerEbert.com domain, which in this case is the analysis provided by Seitz.