Great buddy movie and, other than language, isn't much worse than a PG-13 movie
Other than one brief nudity scene (cover your kids' eyes!), this isn't as bad as many other reviewers made it out to be. The violence is fairly bloodless. In fact, I'd say the violence itself would be fine for a PG-13 movie. The main issue here is language. And I'd say it's nothing a teenager wouldn't have heard at school, etc. As for the movie, I thought it was a blast. Funnier than I thought it would be and great chemistry with the leads. It's not a classic, but definately has good entertainment value.
What other families should know
Too much violence
Too much sex
Too much swearing