: Promotional posters often include "stickybeaking" bystanders, police helicopters, and SWAT teams below to amplify the tension.
: Actor Sam Worthington and co-star Elizabeth Banks actually filmed on a real ledge on the 27th floor of a building.
: Close-up shots or more complex maneuvers were filmed on a dedicated set located only eight feet off the ground for safety. Symbolism and Narrative Function