Ian Anderson’s review published on Letterboxd:
The title is a pun. One could write about what drives people to name their children (particularly girls) after things and concepts, but I digress. Two teenage girls are off on a bus trip to a concert in a town several days away (Western Australia is a big place). Neither girl told her parents.
The film tells the story from multiple points of view, or rather it tells several intersecting stories that centre around Grace and her parent's hunt for her. Through these stories we get to know her mum and dad and the private detective on her case. After starting off in an orthodox way the story becomes increasingly shaggy dog. The tone of the film jumps all over the place in a Coen Brothers fashion and the title of the movie could equally well be "Everyone behaving badly".
Western Australia looks very beautiful in this film, especially during the opening credits.