Is G rating the same as U?
Broadly speaking, current British classifications are similar to US ones - G equals U, PG equals PG, PG-13 equals 12A (barring a one-year age difference) and NC-17 equals 18 (though the British version doesn't have the cultural problems discussed above).
The U stands for universal and is applied to movies suitable for most ages. These movies should be positive in tone and should make clear differences between right and wrong. There should be no dangerous behaviour that children can copy and, at most, there may be occasional very mild bad language.
U-certified films mean suitable for family viewing, that is to say, the film shall be such that all the members of the family including children can view it together.
The 'S'(restricted to specialized audiences such as doctors or scientists).
PG stands for parental guidance.
That means that anyone can watch the film, but it's different from a U rating because children under eight, or more sensitive children, might find something about the film upsetting.
Guide to Movie Ratings. GGeneral Audiences. All Ages Admitted. A G-rated motion picture contains nothing in theme, language, nudity, sex, violence or other matters that, in the view of the Rating Board, would offend parents whose younger children view the motion picture.
The U symbol stands for Universal. A U film should be suitable for audiences aged four years and over. However, it is impossible to predict what might upset a particular child, especially at this lower end of the category range.
Rated PG-13: Parents strongly cautioned – Some material may be inappropriate for children under 13. Rated R: Restricted – Under 17 requires accompanying parent or adult guardian. Rated NC-17: Adults Only – No one 17 and under admitted.
R: Restricted, Children Under 17 Require Accompanying Parent or Adult Guardian. This rating means the film contains adult material such as adult activity, harsh language, intense graphic violence, drug abuse and nudity.
G: Appropriate for people of all ages. PG 12: Parental guidance is required for children under the age of 12.
What age is M?
Mature (M)
Films and computer games classified M (Mature) contain content of a moderate impact. M-rated films and computer games are not recommended for children under the age of 15. They include portrayals of elements such as violence and themes that require a mature outlook.
Restricted: R - Under 17 requires accompanying parent or adult guardian.

SPEED RATING Z
While it nearly always means a high performance tire for high-performing sports cars, “Z” may actually appear in the middle of a tire's size information. When it does, it represents either a maximum speed of more than 149 mph (240 kph) or 186 mph (300 kph).
A B movie or B film is a low-budget commercial motion picture. In its original usage, during the Golden Age of Hollywood, the term more precisely identified films intended for distribution as the less-publicized bottom half of a double feature (akin to B-sides for recorded music).
The NC-17 rating is the highest rating (even higher than the R-rating) that a film can be given, and it means the movie is for adults only (ages 18 and older) and no one age 17 or younger will be admitted. This rating, prior to 1990, was previously rated X.
H indicates that the CPU is equipped with more powerful graphics, these are high performance chips great for high-end gaming and used by brands like MSI in their serious gaming line-up of laptops. U signifies that the CPU has “ultra-low” power consumption.
H series chips are basically for the creators, while U series chips are meant for a minimum to moderate usage. Generally, H series chips have a higher price tag for their uncompromised performance, while other chips are far cheaper than these power-hungry beasts.
A flat is a better option for families as it provides more space and privacy. But students and working professionals prefer a PG/Coliving space because it provides food, laundry, and other facilities.
Actors may be asked to practice kissing scenes during rehearsal to resolve any issues, or they may be asked to hold off so the kiss feels organic. Usually, a director will request that the scene be rehearsed (or not) and discuss that choice with the actors until a decision or compromise is reached.
The restrictions set by the US ratings board mean the F-word can only be used once in a PG-13 movie.
Is kissing child appropriate?
While experts say it's best for parents not to kiss their children on the lips, most parents insist there is nothing wrong with showing affection in this way, and that it's a sweet and innocent gesture of love.
The Big 'A' - Stands for 'Adults Only', which obviously prohibits anybody under the age of 18 to watch the film in theatres. The Big 'S' - Stands for 'Restricted to special classes', which means only a certain members of the society, such as doctors, scientists, etc, are permitted to watch the film.
R: Restricted - Under 17 requires accompanying parent or guardian. Children under 17 are not allowed to attend R-rated movies unless accompanied by a parent or legal guardian 25 years of age or older.
ALL: which is equivalent to U – Universal, suitable for all. GUIDANCE: which is equivalent to PG – Parental Guidance. TEEN: which is equivalent to 12 – Over 12.
A TV Show/Program rated TV-MA can include both R-rated and NC-17 rated material. Thus TV-MA can be considered to be a more restricted or worse rating than R.