Continuity mistake: After he finds the dog and goes back to crank the battery, it only charges for 1 min 36 sec. But after he names the dog Sherlock, he cranks again and the time that shows behind him is 1 min 42. (01:01:30 - 01:05:30)
Continuity mistake: When Paul Walker bends down to see his wife's body, the clock reads 09:47, however in the next scene, the time stamp on the movie shows 09:30am. (00:13:00 - 00:13:40)