"The movie industry is incredibly unionized. And moral rights especially are important to the various film based unions. You might even see the unions themselves listed in the film credits if you look hard enough."
To attract movie makers to British Columbia, much of the stupidity exemplified by requirements that for example you had to wait around for the correctly designated union man to move a piece of equipment out of the way lest you bring the wrath of the union upon yourself, was eliminated.
I watched the movie "Appocalyse Now" at the theater and there were no credits shown, however a sheet of paper was given to each viewer with the information. Unions stopped that from ever happening again.