Rated G: All ages admitted – General audiences.
Rated GP: All ages admitted – Parental guidance suggested. [Sometimes a disclaimer would say "This film contains material which may not be suitable for pre-teenagers"]
Rated R: Restricted – Under 17 requires accompanying parent or adult guardian.
Rated X: No one under 17 admitted.
Rated G: General audiences – All ages admitted.
Rated PG: Parental guidance suggested – Some material may not be suitable for pre-teenagers.
Rated R: Restricted – Under 17 requires accompanying parent or adult guardian.
Rated X: No one under 17 admitted."