Common Sense Note
Parents need to know that, for the standards of science-fiction action, this is a rousing, well-made monster flick that's high on fun and excitement but low on terror and gore; there's some salty language, yes, and the monsters are dispatched in fairly spectacular, splattery fashion, but there's not a lot of blood, and the human victims of the creatures are dispatched in bloodless fashion. There's a lot of firearms action in the film - courtesy two "survivalist" characters -- but it's all unleashed against huge, scary worm-monsters who clearly have it coming.
Light flirting; a climactic kiss.
Bloodless (for the most part) violence is perpetrated against human beings by monsters; gory violence is perpetrated against monsters by human beings. Bombs, bullets, and blunt force are used against creatures; human beings are bitten by tentacles, tugged underground, mangled, etc. A dehydrated dead body is seen. Very mild blood.
Mild strong language, including "hell," "goddammit," "Jesus Christ," "pisses," "s--t," "bastard," "ass," "a--holes," and one non-sexual use of "f--k."
Perhaps the best thing here is the depiction of how a group of disparate individuals comes together to survive an attack by carnivorous underground monsters; the attack also lets our heroes show that they're reliable, responsible people who can come through in a tough spot.
Some brands are seen -- Marlboro, Virginia Slims, Mountain Dew, Pepsi, Caterpillar heavy equipment. Firearms are named by brand.
Drugs / Tobacco /
Characters drink beer.