Joker Movie - Police in the main cities of the United States (U.S.) to improve security, as the beginning of the airing of the film "the Joker" on Thursday (4/10).
Movie watchers refer to Joaquin as a brilliant actor that shows the performance of outstanding in his role as the Joker, a loner who likes to do acts of violence for the sake of fame.
Police officers even use a helmet and carrying a rifle while on guard at the screening of the film "the Joker" in the New York Film Festival on Wednesday (2/10) evening local time.
Police in New York, Los Angeles, and Chicago expressed no specific threats.
Website Hollywood, Deadline, reported several security officers menyawar in the building of the cinema.
One of the audience, Charles Kiwacs said the shooting in the Aurora movie theater is an isolated occurrence.