Revealing mistake: During the scene where the two teenage stars are outrunning the tidal wave through the hills, the girl is supposedly carrying her baby sibling strapped to her chest. However, the legs that can be seen dangling out of the baby-carrier belong to a dummy.
Revealing mistake: When Jenny Lerner is first having drinks with her mother at the beginning, her mother's cigarette is obviously fake. It is not emitting any smoke throughout the entire scene. (00:09:20)
Answer: There is no logical reason. It can be argued that people are just stubborn and/or reluctant to leave their homes under any circumstance. However, this is a movie, and showing the last-minute chaos of people attempting to evacuate heightens the tension and the drama.
raywest ★