 The UK cinema release in 1975 had edited some of the lines to receive an A  certificate. These lines include some of Zoots texture about the oral sex.  All the edited lines were still in the 1979 video release with a 15  certificate by mistake! It was not till 1996 that the UK videos became  completely uncut. In 2006 the film finally received a lower certificate uncut  with a 12.