A quick definition

PG-13 - Parents Strongly Cautioned - Some Material May Be Inappropriate For Children Under 13. These films may contain sex references, up to four uses of explicit language, drug innuendo, strong crude/suggestive humor, mature/political themes, moderately long horror moments and/or moderate action violence. There are usually no restrictions on non-sexual nudity. However, extreme bloodshed is rarely present. This is the minimum rating at which drug content is present; with the exception of Austin Powers and Click. Marijuana smoking is the only illegal drug use that can be depicted in a PG-13 film, with the exception of Forrest Gump, in which a brief scene depicts an actress snorting cocaine. While PG-13 films usually have more profanity than PG films, this is not necessarily the case. A film that is given a PG-13 rating due to profane language and/or racial insults is given this rating because it contains more of these elements than a PG rating would permit, or the film contains uses of stronger profanities than a PG would permit. A film rated PG-13 for "intense violence" is given this rating if blood is present in a violent way.