What to watch out for
Aliens attack, randomly, out of nowhere, interrupting the lives and plans of several young adults. The humans want to survive, but they have no real idea how. They try to overcome this major challenge, but nothing they do -- and nothing anyone else does -- has any real effect.
East Coasters Jarrod and Elaine are presented as more admirable than the "soulless" Los Angeles residents, who are generally depicted as liars, cheaters, and not very nice. Jarrod is protective of Elaine, but his attempts to rescue the group usually come to nothing -- and he becomes less trusthworthy later on as events progress. The women usually look to the men for help.
Scary images of humans being abducted into alien spaceships; black veins begin to appear on human victims, and eyeballs turn white. Lots of gross creature effects, such as slime and brains. Giant aliens grab and "eat" humans. A character attacks an alien brain with an ax. Guns are pulled. Jet planes engage in a dogfight with alien ships, and missiles are fired. A character kills himself in a gas explosion in an effort to take out some of the monsters. Lots of arguing.
A man and a woman have implied sex in a bathroom at a party; cheating is suggested. At a party, people spy on the neighbors, and there's some implied oral sex. Girls in bikinis are seen near a swimming pool. The hero's girlfriend is pregnant; there's some discussion around this.
Several uses of "s--t," plus "oh my God," "hell," "d**n," "son of a bi*ch," "a*s," and "god*amn.,"
Not an issue.
Drinking, drugs, & smoking:
Characters (young adults) drink lots of hard liquor during a birthday party.