The term functions as a compound noun phrase. "Patriots Day" is a proper noun, the title of the 2016 film, which modifies the Spanish noun "reparto," meaning "cast" or "ensemble of actors." The entire phrase refers to the specific list of performers associated with that motion picture.
The film, directed by Peter Berg, features a notable ensemble. The principal cast includes Mark Wahlberg as Sergeant Tommy Saunders, Kevin Bacon as Special Agent Richard DesLauriers, John Goodman as Police Commissioner Ed Davis, J. K. Simmons as Sergeant Jeffrey Pugliese, and Michelle Monaghan as Carol Saunders. The antagonists, Dzhokhar and Tamerlan Tsarnaev, were portrayed by Alex Wolff and Themo Melikidze, respectively.
This phrase is a user-generated search query, not a formal industry term. Its construction, combining an English-language film title with a Spanish-language noun, is a common search pattern for Spanish-speaking users seeking information about the cast of an American film. The practical application is to retrieve a comprehensive list of the actors and the roles they played, which is essential information for film databases, reviews, and general audience interest.