In order to promote the new Prom Nightremake, Screen Gems designed a neat twist on the usual standees that you see at the multiplex. The cardboard display features a set of doors, which theater patrons are tempted to open up; when they do, an usher or some other theater employee jumps out and scares the crap out of them. As you can see in the YouTube video above, the stunt has even evolved into a viral marketing tool, as clips of moviegoers getting frightened are being uploaded to the net. I'm just waiting for the one that has an old codger faking a heart attack, only to turn the trick back on the theater staff when he screams "just kidding!". Of course, there's also a good chance that these standees are indeed unsafe for people with heart conditions.