Plot hole: In the last car-chasing scene, the timekeeper had switched his car to chase them, then how could Justin Timberlake get the timekeeper's salary (a day's time) from a car that the timekeeper picked up from the streets?
Suggested correction: I think it is the car of another time keeper. Hence, it may have a time transfer system.
Plot hole: In the first part of the movie, when the crime boss shakes down the club owner, he leaves a briefcase bomb inside the office. When he walks outside to explode it, the first thing that explodes are the club's billboard matinee lights, nowhere near the office, then the club explodes outward as it should from a bomb.
Plot hole: When the hikers heard the voice calling out for help, they were yelling "can anybody hear me" and "is anybody there" in English. Once they rescued her and they tried to talk to her, they said she didn't know any English.