It's the Board that's bad not the teacher

On its website the Classification Board offers the following advice if you have a complaint about a trailer you have seen at the cinema: “Please contact the cinema where you saw the trailer first to address your concerns. If you are not happy with their response, please contact us in writing”.
Having actually followed that advice, let me add some advice of my own: “Don’t bother”.
In a response to my complaint about the Bad Teacher trailer in a screening of Harry Potter 7.2, the Board’s classification branch advises “it is up to the cinema which trailers they screen with certain films” and “the board does not have any involvement in the content contained in trailers”. As long as it meets the “commensurate audience rule”, which the board defines as the classification of the advertised film must be the same or lower as the feature film, there are no restrictions on the content of the trailer.
Viewers actually have a right to complain to the Australian Communication Media Authority if promotions in television programs do not match the classification of classification of the program being viewed. There is the power to issue breaches and it is a power that the ACMA do exercise. Why aren’t cinema patrons offered the same rights?
A submission to the ACMA review seems appropriate.

Here is the Classification Board's full response: