Answer the following question: Question: What is the name of the theatre where the events take place? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: Anguish Context: The film begins with a written disclaimer: During the film you are about to see, you will be subject to subliminal messages and mild hypnosis. This will cause you no physical harm or lasting effect, but if for any reason you lose control or feel that your mind is leaving your body -- leave the auditorium immediately. The disclaimer is accompanied by a narrator, who advises viewers to take caution regarding their surroundings once the film has begun, and not to engage in conversation with any unknown individuals for the duration of the running time. In the Los Angeles theater The Rex, moviegoers watch the film within a film, The Mommy. The Mommy tells the story of John Pressman (Michael Lerner), an extremely myopic, uncontrolled diabetic who works as an ophthalmologist's assistant and is progressively growing blind. For unstated reasons, his overbearing mother Alice (Zelda Rubinstein) hypnotizes him and induces him to murder people so that he can remove their eyes and bring them back to her. One evening, Johnagainst his mother's wishesbarricades himself inside of a movie theater playing The Lost World, where he sets about killing the patrons one by one with a scalpel. Once John's rampage becomes apparent, the surviving moviegoers attempt to flee the now sealed-off theater. The police bring Alice to the theater in an attempt to end the siege; in the course of trying to talk John down, Alice is accidentally shot to death by the police. As The Mommy wears on, patrons of The Rex begin to experience anxiety attacks and disorientation in response to the events onscreen. In particular, one man grows progressively agitated, constantly checking his watch; and a teenage girl, Patty, begins to break down in tears, though she cannot entirely articulate her fear. At a key point in the film, the man exits the theater and approaches the concession stand, where he's recognized by an employee as a frequent patron of The Mommy. Patty's friend, Linda, goes to use the bathroom moments later, and witnesses The Man removing a...
Answer:
The Rex