i watch the trailer for this film and a usual thinking that it would summarise the film . prediction and explosion and they find a way through it . i be amaze to discover that the film be dark and it create a foreboding atmosphere which it carry through the film well . what be not present via the trailer and or hint at greatly throughout the start be that the film be science fiction and this be why i feel many people think that know drop the ball because it not how they expect it to turn out . religious connotation and influence and science fiction bring together in a crescendo that work well and draw you in . if you be tell the detail in the trailer while it would have be ruin for you . it make a refreshing change .