Goofs

When Sophie tries to escape in the van, she is having problems starting the van. She is using her right hand to switch the key ignition on. When she stalls again afterwards and Taylor tells her to start it in neutral, her hands are clearly on the steering wheel when the van starts.

At the start of the film, when Alex is on the bus, you can see filming equipment (a camera) in the reflection of the window. This is seen whilst the camera is looking side-on at Alex (just before he reads the Australian guide book).