The version of track 20 here is sampled from the ending of the 1982 porn movie "A Brief Affair". The "Music Has the Right to Children" version is a re-recorded version, with the line "a so-called obscenity case" changed to "a censorship case or a so-called obscenity case" and the line "stop you from viewing an adult film" changed to "stop you listening to Boards of Canada".
From BOC Maxima track 20 is 'One Very Important Thought'
I saw this posted on the Discogs site.
http://www.discogs.com/Boards-Of-Canada ... ease/15292
I don't have the movie so who knows?
Also this does not relate to the original referenced track other than to point out that sampling porn movies is not out of the question.