Common Sense Note
Parents need to know that the movie -- based on a first-person-shooter video game -- includes loads of shooting, which leads to frequent bloody wounds, dismemberments, and explosions. The marines curse repeatedly (they're especially fond of the f-word and "hell"), the monsters roar, attack, and generally look ugly. One marine anticipates going on leave, where he will have sex with "she-males." When a young marine takes a drug, a veteran rebukes him for being irresponsible. Monsters are dispatched horrifically. One marine is beheaded, another slammed against walls and ceiling, and still another turns into a monster and kills himself (being Christian, he crosses himself first) by slamming his head into an unbreakable window. One character in a wheelchair is missing his lower body, explained as the result of a molecular transportation accident.
With all the killing going on, sex is secondary, though one marine refers early on to a liaison with "she-males."
Based on a first person shooter video game, the movie is primarily comprised of shooting, blowing up, and blood-letting.
The film promotes the video game by its very existence.
Drugs / Tobacco /
Marines use drugs to enhance violent performance.