Continuity mistake: When Cheng watches Bu stick the note on the café window, no one else can be seen on the pavement in front of the café. When the scene is shown again inside the café, a father with a baby can be seen walking past the window, who were not seen the first time. (01:54:00 - 02:02:25)
Visible crew/equipment: When Ling leaves the apartment building after hitting the Dean and his wife with a bat, a crew member holding a radio can be seen standing next to the door just as she walks out the doorway. (03:03:35)
Revealing mistake: When Jin is walking through the train station with his granddaughter, right before Ling is shown standing at the ticket booth, a few of the extras that Jin walks past can be seen looking at the camera. (03:36:45)
Other mistake: In the cast list during end credits, the name "Wang Jin's granddaughter" is missing a 'T', misspelling it as "granddaugher". (03:50:25)
Visible crew/equipment: When Ling climbs out of the bathroom window and jumps onto the ground, the camera can be seen reflected in the window towards the bottom right-hand side of the shot. (03:02:13)
Revealing mistake: When Jin and Bu are confronted by the dog owner, Bu is standing on the right side of the frame. Then suddenly, Bu ducks down in front of the camera and repositions himself on the left side of the frame. Presumably, the actor was standing on the wrong side of the frame and had to reposition himself and ducked down because he didn't want to get in the way of the camera but unintentionally got caught doing so. (01:26:20)
Revealing mistake: After Jin beats up the two thugs with the pool cue, it cuts to Cheng walking down the street and on the phone. After getting off the phone, he continues walking, and some of the background extras can be seen looking at the camera as they walk past. (01:49:10)
Visible crew/equipment: When the dog owner gets out of his car to confront Jin, a boom mic can be seen reflected on the car window. (01:26:20)
