Anyone recognize this movie?

I read this in a Russian columnist's writings last fall. I haven't had any luck figuring out what movie he's talking about... Anyone have an idea?

There’s an Italian film where the action takes place in a movie theater. They’re showing a gripping film about a murder. The main character fires a gun from the screen, and in the theater, a member of the audience dies. The scene repeats again, and again there’s a death in the theater. It’s shown a third time—and the same thing happens. And there are no traces of any real murderers! Finally, an investigator comes to a fantastic conclusion: evil is able to materialize itself. If the audience is under the influence of a threatening image, a bullet can come out of nowhere.