The BBFC (British Board of Film Classification) is an independent non-profit organization that regulates films shown in British cinemas and videos sold and rented in the UK. They assign age ratings to films to help inform viewers of potentially unsuitable content. The main ratings are U, PG, 12/12A, 15, and 18, with each rating allowing for more explicit content such as violence, language, sexual content and themes. The BBFC aims to protect children from harmful content while also empowering adults to make their own viewing choices.