Two celebrities had to be chosen, with their recognisability key to the idea – it was important for an audience to get an immediate read on the characters, and to understand the unlikelihood of these two different people being thrown together.

Moreover, Bindi Irwin was cast in the film as not only a recognisable face, but one that Australians feel a real kinship with. She was designed to be the anchor point of the film, letting Australian audiences feel represented onscreen in all the ways that they most admire – Bindi’s unflappability, her intelligence, her humble wit.

Paris Hilton, by contrast, was cast as a summary of how Australians view America – likable and warm, but still pleasantly surprised by the vastness of this country.