The documentary is to air on July 2, the day before the winning candidate, Briton ,begins the six-month stint as caretaker of Hamilton Island with a salary of £74,000. BBC Wales is to produce the documentary.
It will provide yet more free publicity for the country, on top of the estimated £54m generated up to the beginning of May by the .
According to Broadcast magazine the hour-long programme "will examine the carefully managed media hype ... and follow the final four candidates from Britain in the last stages of their battle to secure the post".
The campaign launched in January, the middle of the northern hemisphere's winter and attracted almost 35,000 applicants and vast amounts of press coverage around the world.
From 50 shortlisted candidates Tourism Queensland chose 16 finalists who spent a week discovering the taste of Vegemite, snorkelling and taking part in swimming tests in a bid to impress judges.
The finalists came from all over the world, including key markets for Australian tourism such as Japan, the US and of course Britain.
CumminsNitro won "Best in Show" for the campaign at the One Show awards, celebrating integrated marketing last month.
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