Because ratings for tv are as follows. TV-Y, TV-Y7, TV-G,(G rating for film,) TV-PG, (PG rating for film,) TV-14, (PG-13 for film,) and TV-MA, (R for film.)
Universal
15 in the UK
Big Fish (2003) is rated PG-13.
I think it means over 18 R stands for restricted. restricted for mature viewing only. R = 21 in America
the film is a pg
PG. very hard to find though.
I think it is PG although the old film was a 15.
Harry Potter and the Half Blood Prince is a PG
"Never Say Never" is rated a PG (Parental Guidance)
"Alvin and the Chipmunks: The Squeakquel" is rated PG for some mild rude humor .
it's pg 13 in the us i think thats 12a - 12 in the uk (it depends on the content)
Assuming you mean the MPAA rating, it's PG-13. At the Internet Movie Database this information can be found for a movie under the heading "Additional Details" (which is near the bottom of that movie's page).
The Film "The Vikings" does have a PG rating .
In the film industry, it means Parental Guidance suggested.
PG-13
PG