Continuity mistake: When John and Jane are having breakfast on the floor after their huge fight, John eats something out of a tall silver container. He then puts it on the floor next to Jane, who picks it up and sticks a spoon in to get some of what's in there. It then cuts to a closer shot of the pair, and Jane is chewing on the food and putting the container down, even though she didn't put it in her mouth.
Continuity mistake: In the scene where Jane and John are driving the stolen minivan and fighting the BMW's on the bridge, the sliding side door and hatch alternate between shots of being opened and closed. Jane's hair flies around from the door being open, before it is ever opened for the first time. These changes occur between wide and close-up shots, and between Jane's and John's close-ups, throughout the entire scene.
Continuity mistake: During the car chase scene, the minivan driven by Brad sometimes has its left tail light and sometimes does not. This mistake is visible several times during the scene.
Continuity mistake: While the Smiths are hiding out in the small shed in Home Made, at one point Jane's glasses are folded and hanging from her neckline with the nose guards facing her right, but in the next shot the glasses are facing her left, then it's back to her right, and finally her left again.Super Grover
Continuity mistake: After John hits the guy with the golf club he pulls the grenade pin, and when John dives back into the minivan he knocks down the rod holding the dry cleaning hangers, but then the rod is back up again without the hangers, and when the last two BMWs are taken out, the dry cleaning hangers are back up as well.Super Grover