The army chopper had 3 emergency landings, before it reached the shooting locations. Uwe Boll did not tell the actors about it, because they might have refused to enter the helicopter.
Before shooting, Uwe Boll insisted, that the actors need to spend 30 minutes in the dark tunnels, that they would feel what claustrophobia really feels like.
A video game developed by Replay Studios was released as a tie-in for the movie. The gameplay involves disarming booby traps, collecting ears from fallen enemies and collecting dog tags from fellow deceased soldiers. According to an interview with Uwe Boll, the game was meant to be released on the Xbox 360, but it ultimately has never had an official retail release, and the only digital distribution store that offers the game is Steam. The story takes place after the movie's events as the player character attempts to find the original crew from the film.
Won a Golden Raspberry Award despite being released in only one theatre in the United States: Worst Director for Uwe Boll (also for Em Nome do Rei (2007) and Salve-se Quem Puder! (2007)).