The question is unclear about what "PG" refers to. However, based on the search results, "PG" is most likely referring to the film rating system. In the United States, the Motion Picture Association film rating system rates films based on their content and assigns them a rating, such as G, PG, PG-13, R, or NC-17. The PG rating stands for "Parental Guidance Suggested" and indicates that some material in the film may not be suitable for children. A PG film should not unsettle a child aged around eight or older. However, unaccompanied children of any age may watch a PG film, but parents are advised to consider whether the content may be unsuitable for their child.