Other mistake: When the villains Patrick and Jack decide to go into the forest and pursue Hannah and the boy, all they take with them is their large guns and nothing else. Yet later on, they are both firing countless, endless rounds of bullets at Hannah, Ethan and the boy. Where did all the extra ammunition come from? They weren't carrying any bags and their tight suits don't seem to be holding anything.
Other mistake: When the D.A.'s house exploded, almost all the debris landed in the front yard; few pieces landed in neighbors' yards. The aerial view on the live news showed a few small pieces of debris on one neighbor's otherwise clean roof, despite the houses being very close. The car that was in the DA's driveway was not visible and there wasn't enough debris on that side of the house to have covered it. The neighbor's boat was not there. Gas explosions typically "floor" the entire house. (00:03:41 - 00:04:55)
Other mistake: After Allison set Jack on fire, his suit jacket was burning for at least several seconds. He was suddenly no longer on fire, there was no smoldering or floor damage, and he was able to immediately start shooting at her. His clothes did not look charred and even his hair was not singed. (Later, the side of his face was burned). (00:52:21 - 00:52:52)
Other mistake: At the school, a police officer told Owen, "Let's go" (move his vehicle). Owen tells Connor "We're playing hooky", makes a sharp turn, speeds past three school buses parked along the road, and passes a police office and school crossing guard (who didn't seem to notice). School zones have 15 MPH limits and police take speeding in these areas very seriously. A motorists violating in a school zone like Owen did would be pursued and cited with multiple offenses. (00:05:40)