Find out who the Australian distributor is and write them a letter to tell them to pull their collective fingers out. There's no good reason for it to be released two months late. None whatsoever.
If we're going to be shafted for two whole months then I won't be paying for it in any form - cinema or DVD. Two months for an english language movie is a fucking disgrace and I won't stand for it.
Oh and it's the "last" book, not the last book. She'll write more.
