PG-13

When the very first word of the script is the S-word, it's reasonable to think that you might be in for quite the ride. Tony Stark's profanity bomb is quickly scolded by Captain America, though (he's got sensitive ears under that helmet), so things don't ever quite live up to this shocking beginning. Sure, there's violence—like…a lot of violence—but it's primarily directed toward evil droids (and the buildings of Johannesburg). We're guessing that if the MPAA was run by robots, this movie would get slapped with an NC-17 rating. It's not, though, so a PG-13 is a fair rating for us humans.