Check out this recent link to The Arts Desk:

The topic is copyright and the changes the Royal Opera House is considering. One of the interesting points of the article is the notion of copyright as it pertains to re-mount and the artist's right to refuse a re-mount if it will compromise the integrity of the work or damage the reputation of the artist. Be sure to scroll down and read the R.O.H.'s equivocating response to the article. The idea of theatre becoming a corporate entity like a retail business is worrisome. As artists, I think we should fight this trend. The notion of "branding" weakens the art form and it will weaken the rights of individual artists. Fortunately, for now, the Copyright Act of Canada protects artists and recognizes our moral rights. Should we allow precedent to be set by the greedy and unethical, we risk losing those rights in the future. As one colleague said, "in more enlightened times, these folks would simply be fed to the lions."

You can view the Canadian Copyright Act at:
http://laws.justice.gc.ca/eng/UpdateNotice/index.html?rp14=%2Fen%2FC-42%2Findex.html