Direct to DVD in UK?
This is just speculation, but some special features have already been rated by the BBFC and the film is not supposed to hit UK cinemas for over a month. Normally they BBFC don't release the classifications till about a month or 2 before release. So could this be going direct to DVD?
BBFC:
http://bbfc.co.uk/releases/popstar-never-stop-never-stopping-sex-tape-video
http://bbfc.co.uk/releases/popstar-never-stop-never-stopping-how-donkey-roll-video