Kevin Gowen wrote:

> Since ignorance would not be a defense, every person who watches a work
> would have to determine not only whether or not that copy "Film X"
> violates copyright, but whether "Film X" itself violates copyright.
> There have been cases, for example, of a tv sitcom that had a
> copyrighted painting hanging on the wall of its living room set. The
> sitcom was sued for unlawful distribution by the person who held the
> copyright to the painting.

And what was the result? What can happen to establishments, which for example, play CDs for
people to listen to despite the clear warning on the label or CD itself against public
performance or broadcast? How about teachers who play copies of copyrighted movies or music for
their classes, or anime clubs that screen videos?