Aurora, Colorado – The FBI has issued an extraordinary warning about possible violence at theaters showing the upcoming movie ". "This comes years after a during a "Batman" movie in Colorado in 2012.
Social media extremist posts about the "Joker" movie prompted the unusual national alert.
CBS has learned about the film's inspiring someone's plot.
FBI encouraged people to "identify two escape routes" in theaters and "run, hide, fight" if in an active shooting situation.
Tina Marie Coon joined three family members whose children were killed or traumatized by the Century 16 Theater.
Warner Bros. to "actively lobby for gun reform."
CBS News asked Coon if she's concerned that a movie like "Joker" could trigger someone else
"Oh absolutely," she said. "I believe there are all kinds of reasons and I don't think we can stop the triggers from happening."
"If you have somebody who has that emotional disturbance level, I think they can find fuel anywhere," Phoenix said.
Warner said its job is to provoke difficult conversations.
"Joker" has been the subject of much debate since it was the last of the Venice International Film Festival, where it won the top prize, according to The Associated Press. It's also expected to be a major awards contender.
The film is a character study of how Arthur Fleck, mentally ill aspiring stand-up comedian and clown-for-hire, becomes the classic Batman nemesis.
The Aurora theater was remodeled and renamed after the 2012 shooting that also wounded 58 people.was convicted of murder and sentenced to life in prison without words.
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