When Andy's mom tells her to look for the car to escape, she finds a truck with Florida plates. When she stops at the crossroads, the front plate is missing. Later it is back on.
At around 23 mins, Laura puts on a gray t-shirt with no bra, the scene shows a mastectomy scar where her right breast was removed, and at around 24 mins her right breast is not visible under the t-shirt. At around 35 mins, she is wearing the same t-shirt and sweats, but both breasts are visible.
When Laura and Andy are leaving the hospital, they pass by a TV which is showing footage of Laura slicing the throat of the gunman. The video shown is at an angle from someone who was obviously standing right next to them. No one could have possibly recorded that video because at that moment, everyone still at the scene was trying to hide under the tables.