Hidden cameras used for some scenes.Some people and some police are real and didn't know they are acting in a movie.
"Surcos", the title of the film, means furrows in English. A field with furrows lefts by a plow is shown at the beginning and the end of the movie as credits background. Furthermore, a signboard on a wall, with the word "SURCOS", also appears in the film without an apparent logical sense. It is front of Chamberlain's garage and only is shown once on a night scene.