介紹:

G – General Audiences All ages admitted. Nothing that would offend parents for viewing by children.
所有年齡都允許。小孩看也不會引起家長的不愉快
PG – Parental Guidance Suggested Some material may not be suitable for children. Parents urged to give "parental guidance".
一些內容不適合小孩，建議在家長指導下觀看
PG-13 – Parents Strongly Cautioned Some material may be inappropriate for children under 13. Parents are urged to be cautious.
一些內容可能不適合13歲以下的小孩，強烈建議家長要留意
R – Restricted Under 17 requires accompanying parent or adult guardian. Contains some adult material.
17歲以下的觀看者需要有家長的陪同和監督。包含一些成人內容
NC-17 – Adults Only No One 17 and Under Admitted. Clearly adult.
17歲及17歲以下的小孩不允許觀看。只允許成人觀看