Revealing mistake: In the opening sequence, when the robbers are on the zip line, two Chicago Police squad cars (white cars with blue markings), not Gotham PD (blue with white markings) can be seen blocking off Van Buren Street for the filming. (00:01:05)
Visible crew/equipment: In opening scene of the aerial view of the building adjacent to the bank, you can see the reflection of the filming helicopter on the left side of the building. (00:01:10)
Continuity mistake: In the opening shot, there is a long shadow over the roof of the bank building as the camera zooms over and towards the windows in the far building. In the next shots, the shadow is gone as the robbers glide across and land on the roof. (00:01:20)
Continuity mistake: In the scene where the mob wearing Joker masks are attempting to zip-line from one building to another, one guy shoots a harpoon at the other building. After being shot, the harpoon never makes it beyond a couple of meters, before it begins to fall down due to gravity. And it doesn't even seem to have enough energy to make it to its target. But in the following scene, the zip-line is shown to be well anchored to the other building. (00:01:55)
Continuity mistake: When the three men in the clown masks are in the van at the start of the film the man at the back (who is the joker) is getting ready for the heist the shot cuts to the two men in the front seats and he is just relaxing in the back. (00:02:00)
Revealing mistake: In the opening scene, the Joker is picked up by some of the other crew members. While he is sitting in the SUV, he inserts a magazine into his Glock pistol and pulls back the slide to chamber a round. However, when he does, the slide locks back, indicating that the magazine is empty. (00:02:05)
Continuity mistake: In the opening heist scene, a clown grabs a bald bank teller. In the wide shot, the blonde bank teller to the clown's left reacts in fear. However in the very next shot, she is motionless and reacts again in fear. (00:02:45)
Audio problem: In the opening heist sequence a clown grabs a bald bank teller and the teller says "Please no, no!" while being thrown over the counter, however, his voice doesn't match his facial expression. His voice is loud and terrified in fear and yet his lips and face expression barely react. (00:02:55)
Continuity mistake: The bank manager shoots one robber in the back with the shotgun. We then see clown dive behind a counter for cover. In this shot, the manager has left the office and is a fair distance away from it. Camera cuts and he's just outside his office again. (00:04:00)
Revealing mistake: When the Joker shoots the bank manager and he stumbles to the floor, you can make out the shape of knee pads under his suit. (00:04:40)
Continuity mistake: During the opening bank robbery scene, the Joker reaches down to toss a duffel bag of money to the school bus driver. He is holding his pistol in his left hand and reaches for the bag with his right. But in the very next shot, his pistol is in his right hand and the bag is in his left. (00:04:50)
Continuity mistake: During the bank scene, the Joker shoots the bus driver and he falls dead in front of the bus. As the Joker approaches the Bank manager to put the gas can in his mouth, you can still see the body. But after he removes his mask and walks toward the bus, the driver's body is gone. (00:05:30)
Continuity mistake: During the bank robbery, when Joker takes off his mask, before the camera changes angles, he uses his right hand to remove the mask and his left hand is holding up the manager's head. When it cuts to a front view, he is using his left hand to remove the mask, but when it cuts back to the first angle Joker's left hand is supporting the manager's head again. (00:05:30)
Continuity mistake: When Joker puts the smoke bomb inside the bank manager's mouth, watch a green sign behind lying on the floor, with a tree painted on it. It has a stick on top which moves around between shots with no one touching it. (00:05:50)
Continuity mistake: As Batman appears in the bank vault, Ramirez looks to Gordon. The scene cuts to Gordon, who acknowledges her to leave the vault. When the scene cuts back again she is already a few meters behind Batman. There's not enough time for her to cover the distance. (00:10:15)
Continuity mistake: During the scene where Alfred tends to Bruce's bite wounds, the angle cuts several times between Alfred and Bruce. When the camera is on Alfred, Bruce is mostly looking down towards the wound. When the camera is on Bruce, he looks straight at the camera. (00:12:25)
Other mistake: The television that Lau used to communicate with the crime lords was a regular set carried in by Lau's operatives and placed on the table (which didn't have a mic or camera on it), and there were no cameras in the room. So how was Lau able to see/hear/interact with the crime lords? (00:23:10)
Suggested correction: Lau doesn't need to see the occupants of the room in order to talk to them - he just needs to be able to hear them, so the fact that there are no cameras in the room is irrelevant. The microphone doesn't have to be attached to the television, it could be anywhere in the room, including under the table.
Revealing mistake: When the Joker first meets the mobsters you can see the reflection of the green screen on the table instead of the TV image. (00:23:30)
Revealing mistake: When Harvey Dent turns on the Bat Signal, Lt. Gordon comes out of the rooftop stairwell. As the door opens you can see that there is no back to the stairwell enclosure, and you can see the city. (00:25:15)
Continuity mistake: When the Joker is taken to Gambol, he shoots a pool ball. We hear it connect with another ball, and then five seconds later the ball reappears. When it reappears it is moving too fast to have taken the time it did. (00:28:30)
