I hate to do spoilers, but that is the punchline to OZ:A Rock and Roll Movie. I just thought I'd spell it out here, in case you saw the 'clean' version for TV.
I have watched the additional material, but haven't got around to watching the DVD movie, yet (waiting for my partner to be available).
I noticed, however, that Lyne Helms seems to have left the planet, as the new release I just bought from Family Box Office has a dedication to her. (sigh) I assume it was she that was working with Aboriginal people on arts projects (?) that I found in Google.
This was Lyne, back in the days when I was playing Gloria, the friendly gorilla...
Rest In Peace