(at around 32 mins) When they arrive at Wolf Creek, they park the car nose-in and facing the sign and the meteorite site. When they come back the car is in the same direction. However, when night falls the car does a 180 degree switch as they are facing the direction where they came from, as they watch the headlights of Mick's truck arrive.
When Liz and Kristy first escape from Mick's and are heading into the outback, it is supposed to be the dead of night, yet in some shots it is dawn.
(at around 1h 23 mins) When Kirsty gets out of the back of the old man's car after he's been shot dead, looking the Mick's gun-sight, she is wearing shoes, yet she is meant to be barefoot.
(at around 8 mins) When Liz runs towards the sea at the beginning, she is wearing a vest and pants but as she is seen running back away from the sea she is wearing shorts.
(at around 28 mins) In consecutive shots, Ben's earring in his right cartilage appears and disappears repeatedly as he is kissing Liz.
(at around 1h 30 mins) The female Swedish backpacker's line is translated in the captions as "Come on, let's get him out of here", when she's actually saying "Hur i helvete kom han hit?", which in English translates into "How the hell did he get here?"
When trying to start the car after leaving Wolf Creek, the engine wouldn't turn. Later Mick says that this is the coil pack. A faulty coil pack wouldn't stop the engine turning over. However, as Mick knows that none of the three backpackers know anything about engines, he can say whatever he likes is wrong with it, and they'll believe him.
In shots from the back seat towards the driver's seat, both the tachometer and speedometer read zero; the car is in neutral and being pulled from the front while the characters are acting. The car is not running or being "driven" by the actors.
(at around 1h 15 mins) The movie is set in August 1999, however, a Euro note and an 'Elizabeth Fry' five pound note are pinned on the wall in Mick's hideout. Euros and Elizabeth Fry fivers did not come into circulation until 2002.
(at around 1h 15 mins) When Liz picks up the video camera, the sound of a tape ejecting is clearly heard before the video begins to play.
When Mick appears with his truck to help the three stranded backpackers, to the left of Ben, the legs of a crew member and the shadow he/she is casting are visible.
(at around 7 mins) When waking up on the beach in Broome, Liz looks out at the sunrise over the water. The sun would be setting over the water in WA, not rising.
(at around 2 mins) Ben buys the red wagon from a car yard in Broome, Western Australia. However all the cars have South Australian number plates.
The movie is set in Western Australia, but the design of the
power poles in the movie are specific to South Australia, and S.W. Queensland (they're called Stobie Poles).