You can do any profession on which a company make long term profits on employees' or freelances' work. Such as science, programming, business development, etc. Amount of residuals paid is zero ($0.- gross).
Media company want to treat writers and actors as any freelance. The issue is that freelances and employees deserve residuals as actors and writers, but it won't happen. It is easier to remove existing benefits labeling them as "privileges", than give more benefits to all