美国电影的等级是怎么分的，都有哪些及？偶就晓得X－RATED是少儿不宜

G: There are no legal restrictions on the sale or hire of a music recording classified G.

PG: There are no legal restrictions on the sale or hire of a music recording classified PG. It should be remembered however, that music recordings classified PG are not recommended for people under 15 without guidance from a parent or guardian.

M: There are no legal restrictions on the sale or hire of a music recording classified M. It should be remembered however, that music recordings classified M are not recommended for people under 15 years as these contain content that is recommended for a mature audience.

MA 15+: Music recordings classified MA 15+ can only be sold or hired to people aged 15 years or older, unless they are accompanied by their parent or guardian, or in Queensland by an adult.

R 18+: Music recordings classified R 18+ can only be sold or hired to adults aged 18 years and over.