Parents need to know that despite the smart-alecky title, this movie is not a comedy. It's a straight-out scarefest, and right up to the farthest edges of the PG-13 rating, with very explicit and gross violence and a lot of jump-out-at-you surprises. Characters are killed and eaten. In addition, a character chain-smokes, and there's some alcohol and some strong language. There's a reference to a teen pregnancy and to adultery. A teen girl is extremely clear about not being ready to have sex, despite pressure from a boy she likes very much, but parents may be concerned about her use of a stun gun to make her point. The female characters are tough and brave. One of the main characters is black, and although he's portrayed as a little paranoid and crazy, he's also brave and loyal.

Families can talk about the different kinds of spiders, which are actually fascinating creatures who benefit humans by eating mosquitoes.