There are all kinds of flaws in this film, but it's good to watch it at home, because while watching this film, I can keep ranting and hardly stop.
There are spoilers below, and it's extremely running. If you haven't seen it, you can turn off the
car at the beginning of the movie. The girl drives and reads text messages, so the flag is properly set up. Sure enough, the car fell off before turning a corner. Off the cliff.