According to the competition details, there's 50 tickets in each city (so 150 all up). The screening is June 27th, one day before the actual opening.
And entry is apparently open to only Sydney, Brisbane and Melbourne residents. So I take that as anyone outside of those cities (even if they could travel there) are not eligible to enter.
So **** 'em. We're keeping our water and they can dehydrate to their hearts content.