They will have finally freed themselves from dependence on those pesky real, analog human beings forever. No human actors, directors, cinematographers, projectionists, or anyone else. No human audiences, ticket takers, popcorn sellers, or janitors. Just an army of obedient digital clones, spun up like so many VMs of Windows XP whenever you need them. And disappearing instantaneously when you don't.
Let the real humans rot. We don't need them anymore anyway. Didn't really like depending on them in the first place. They just brought far too much uncertainty to our profits. And they smelled.
“Why is it every time I ask for a pair of hands, they come with a brain attached?”
-- Henry Ford, American automotive industrialist, 1863-1947