The BBFC classifies films in the UK across several categories from U to R18. The U category is for universal viewing and allows only mild bad language, violence, and brief sexual scenes or kissing. The PG category allows more disturbing scenes but they must have anti-drug messages or positive outcomes. Higher categories of 12A, 15, and 18 restrict increasingly strong language, violence, nudity, and sexual content. The R18 category is only for licensed adult cinemas and shops and prohibits any non-consensual or dangerous sexual content.