This was shown via a movie trailer to the people in the colorado movie theater shooting
Then cut and removed from all movie copies after the batman shooting.
The victims all saw this right before the start of the Batman movie, right before the “gunmen” came in the door.
The Studio has pulled the Gangster Squad trailer from every site it can. Here are four screenshots from the now banned trailer showing the gunmen firing through the screen at the audience and then emerging from behind the screen firing. It is being reported that the audience at the Century 16 saw this scene shortly before they themselves were massacred by the gunman, who told police he was “The Joker.”