Nindigully pub, prominently featured in the film as the Boomerang café, is a real life pub, essentially a town in itself (population 6), located 45 km from the nearest town. It is the oldest hotel (pub) in Queensland, operating continuously since 1864.
Writer-director Antony J. Bowman got the idea for the film when he read about a Texan truck driver who also wrote romantic novels.
The Structure on top of the Boomerang Cafe Is still at the Nindigully Pub Site.
The karaoke scene was filmed in the last of the "country-looking" pubs actually located in Woolloongabba, an inner-city suburb of Brisbane. You can visit it today, but it's been revamped somewhat. The Morrison Hotel.