MPA: Avatar: The Way of Water is rated PG-13 for sequences of strong violence and intense action, partial nudity, and some strong language.
Movies that are labeled PG-13 are not considered suitable for children under the age of thirteen, but parents can decide whether or not to allow their children to see the movies. PG is an abbreviation for `parental guidance’ which means “parents strongly cautioned”: it indicates that parents may find some content of the film unsuitable for children under thirteen.