Ok, quick edit: found it cheaper on standard price at TheHut
Also see a few other retailing it for $23 but they charge more for shipping
Amazon.com = Region A/1: North America, Central America, South America, Japan, North Korea, South Korea, Taiwan, Hong Kong and Southeast Asia.
TheHut = Region B/2: Europe, Greenland, French territories, Middle East, Africa, Australia and New Zealand.
~$28 on Amazon standard shipping
http://www.amazon.com/dp/B005FHWWXQ
Same deal as other Amazon US BluRay deals - http://www.ozbargain.com.au/node/85746
All of Amazon US blurays say locked to region A/1 - some I have bought before weren't, others have been, so buyer beware if your BluRay player is locked
AUD $34.88 using Amazon Global Expedited Shipping (averages 8-16 business days)
Language: English
Aspect Ratio: 2.35:1
Number of discs: 5
Rated: Unrated
Studio: 20th Century Fox
DVD Release Date: October 9, 2012
Special Features
PLANET OF THE APES: Science of the Apes BONUSVIEW,* Beyond the Forbidden Zone Adventure Game, Public Service Announcement from ANSA, Evolution of the Apes Featurette, Impact of the Apes Featurette, Behind the Planet of the Apes Documentary with Interactive Mode, Audio Commentaries, Text Commentary, Original Makeup Test, Roddy McDowall’s On-Set Footage, Dailies & Outtakes, NATO Presentation, Vintage 1968 Featurette, Theatrical Trailers, Still Galleries & More!
BENEATH THE PLANET OF THE APES: Isolated Score Track, From Alpha to Omega: Building a Sequel Featurette, Theatrical Trailer, Still Galleries & More!
ESCAPE FROM THE PLANET OF THE APES: Isolated Score Track, The Secret Behind Escape Featurette, Don Taylor Directs Escape From the Planet of the Apes Vintage Featurette, Theatrical Trailer, Still Galleries & More!
CONQUEST OF THE PLANET OF THE APES: Unrated and Theatrical Versions, Isolated Score Track, Riots & Revolutions: Confronting the Times Featurette, A Look Behind the Planet of the Apes Vintage Featurette, J. Lee Thompson Directs Conquest of the Planet of the Apes Vintage Featurette, Theatrical Trailer, Still Galleries & More!
BATTLE FOR THE PLANET OF THE APES: Extended and Theatrical Versions, Isolated Score Track, End of an Epic: The Final Battle Featurette, Theatrical Trailer, Still Galleries & More!
Special Features Are Unrated, May Not Be High Definition, And Are Not Closed Captioned.
*BONUSVIEW-enabled player required.
The original is a classic, but be warned that the four sequels all have rather low ratings on IMDB.
Especially the last one.