The original version of Tenet given to the BBFC would have received a 15 rating, meaning that nobody under the age of 15 could view the film in theaters. However, in order to drop to the 12A rating, meaning that viewers under 12 may see the film if accompanied by an adult, Tenet only had to make alterations to a single scene, and so, those changes have reportedly been made and Tenet will open in the U.K. with a 12A rating.