By Mandi Bierly
Updated August 19, 2010 at 07:23 PM EDT

In The Machinist director Brad Anderson’s upcoming apocalyptic thriller Vanishing on 7th Street, a massive power blackout causes the population to physically disappear from Earth (and leaves behind bad special effects of an airplane crashing without a pilot). Survivors Hayden Christensen, Thandie Newton, and John Leguizamo band together in a tavern and struggle to survive as the darkness hones in on them. That synopsis, I can follow. It’s the trailer that confounds me: What does the man mean when he says, “Stay near a light source, but do not trust any light other than the one that you hold in your own hand.” Is the light good or bad? It would be an interesting plot device if they had to fight every human urge to go into the light, which is where you’d think you’d be safe…