Other mistake: When Jim, Selena, Frank and his daughter enter the supermarket, you can notice all the fresh produce (apples, carrots etc) looking fresh. This virus has been going on for a few days now, and supermarkets get their fresh produce out immediately. After 10 days or so, give or take, the fresh produce shouldn't be looking this fresh. (00:46:00)
Other mistake: When Emery awakens from his nightmare his clock reads 1:20 a.m. But in the following shot, a grandfather clock in the hallway strikes 2am, but its hands are at 12:00 am.
Other mistake: In the scene where Mark Scott is arriving back from being taken into custody by Two River Bend police, the unit's emergency number is a different one, not 9-1-1.
Other mistake: Sy enters the SavMart (after being fired) with a large photo envelope in his hand, and the boss who fired him confronts him about going elsewhere to process his photos, and they get into it. Then Sy pushes past him, and in the next shot, walks right up to the photo counter, when in all previous scenes, the photo lab was at the back of the store.