There are eight classification categories: Uc, U, PG, 12 and 12A are advisory only; 15 and 18, which restrict viewing by age; and R18, which is only available to adults in licensed outlets.
Occasionally, a work lies on the margin between the two categories. In making a final judgement, the BBFC takes into account the intentions of the filmmaker, the expectations of the public in general and the work’s audience in particular, and any special merits of the work.
Classification decisions may be stricter on video than on film. This is because of the increased possibility of underage viewing recognised in the Video Recordings Act, and of works being replayed or viewed out of
context. Accordingly, a work may receive a higher age classification on video, or require heavier cuts.
Classification decisions are most strict on trailers and advertisements. This is because difficult content, which may be mediated by the context of the original work, may have a much starker effect in the brief and unprepared context of the trailer/advertisement.
Anything not permitted in these guidelines at a particular category (PG to 18) is unacceptable also at all preceding lower categories. Similarly, anything permitted at one level is acceptable at all higher levels.