State of Mack's bandage during the earthquake.
After Davis gets out of the hospital, the nurse turns to walk away from his limo and the driver shuts the door at the same moment the car is being started. As soon as the camera pulls back to a wider shot the nurse is gone and the driver is behind the wheel.
After Simon climbs up his stairs with the groceries, two windows can be seen on his apartment. When he sits down at the TTY terminal to chat with his daughter, the windows behind him have louvers on them and do not match the windows on his building.
When Mack takes Simon to breakfast, the Venetian blinds are fully closed at the beginning of the scene. Later, they are slightly open and traffic can be seen going by outside.
When Claire is driving Roberto home after summer camp, its obvious the vehicle she is driving is on a trailer, as her steering wheel movements do not match the change in the vehicle's direction.
During Mack and Simon's breakfast scene, the position of the napkin holder, ketchup, and sugar change during the scene. The sugar level in the shaker changes from 3/4 full to full and back to 3/4 full.
Around the 42 minute mark, after Claire shows Mack the baby she's found, they walk into the adjoining bathroom. As Mack sits down to tell Claire they must call the police, a boom mike briefly bounces in and out of the shot.
The Lexus driven by Mack is a rear wheel drive automatic transmission model. It should be towed with its rear wheels off the ground. Simon tows it from the front.