Watching a R-rated movie is something that you would get a visit from Brother Hounder if you are caught doing it. That hounder-hounder went beyond what the Filthful and Disgraceful Slavebugger wrote down--you would lose any "privileges" and have a harder time moving ahead if you made a practice of watching R- movies.
The music is another area of control. The Filthful and Disgraceful Slavebugger has printed a few Washtowel articles warning about different types of music. In 1983, they warned of "evil disco" that leads to fornication (if that was true, I would be downloading even more than I already have). They also warned against funk and rock music, and told people that even some "oldies" were dirty songs. In 1993, they put out another Washtowel warning against heavy metal and rap. You could lose "privileges" and get hounded if you were caught with any proscribed music, but that was about it.