Heard this on the radio yesterday, and it's almost over (I don't know how I missed it when looking over their website a fair few times in the last week).

Starts - Thursday 26 May 2011 at 00.01 (AEST)
Ends - Wednesday 06 July 2011 (prize drawn the next day)

Purchase a ticket to 3D (only) version of TF3 in a standard , Vmax, or Gold Class cinema - online at http://www.eventcinemas.com.au, via Facebook or via the Pocket Cinema iPhone or iPad application or via mobile phones at m.eventcinemas.com.au during the competition dates to automatically be entered into the draw.
One entry per ticket purchased.

There is only one prize for this competition.

Major prize details:
o Return economy flights for 2 people from the winner’s nearest Australian
capital city to Los Angeles, United States of America (flight associated taxes are included)
o Return Airport transfers for 2 people
o 5 nights’ accommodation at The Andaz Hotel Los Angeles, for 2 people
including breakfast
o Complimentary Healthy In-room Minibar
o Return Chauffer driven transfers from the Andaz Hotel to the Airstrip in a
Chevrolet Camaro
o Tour of Los Angeles landmarks
o Hollywood Fighter Jet Experience for the Major prize winner only (for 1 person), which includes:
- - Full flight training
- - Personalised flight suit with winner & companion’s names and an
Autobot or Decepticon Badge
- - Flight in L39 Military Jet plane, which will be filmed for them to keep
- - Insurance for Flight Jet Experience
o Travel Insurance for 2 people
Total Prize Pool: $12,334.50

More details can be found here.