In Luis Buñuel's classic about street children, Los Olvidados, there is a scene filmed on the Eje Central, a boulevard which was known at that time (1950) as San Juan de Letrán. Some may remember that there is a brief view of this marquee, of a movie theatre called the Cine Teresa.
Today it's a porno theatre. Perhaps appropriately, the name of the closest street is Delicias, and on the corner there is a doctor who will treat you for venereal diseases. The day I shot this photo, the bill included a double feature of Lust and Take it in the Throat. The place has such a seedy appearance that even I (with a customarily high tolerance for seed) have not gone in there. If anyone has had an experience in the Teresa, please post a comment.