I think the main problem movie studios face is sheer logistics. Its not evil-dom, and perhaps only a small grain of it. Think about it: you have produced a movie, and don't know how successful it will be. Do you want to manufacture millions of DVDs in vain, or only tens of thousands? These are all costs you have to bear, I guess. With every new movie being its own financial risk, its hard to release a movie world-wide without cost problems. Next are the cinemas. I guess the australian cinema companies are quite accustomed to having a pre-ordered list of successful films from the US releases. If there is an unsuccessful one, they can cancel shows. This adoption in small steps is what google is doing too for play store app updates.
English has 1.8 billion speakers. You can't target them all, in cinemas across the world, in one day. Yes, perhaps you have fast enough internet to rsync a 4k HD 3D movie to thousands of cinemas. But explain sending their intellectual property they have worked their assess of for the last months or years over the internet, the "spooky place" with the pirates, to a movie label.
But I agree, they can be a lot less fucked up.