Continuity mistake: In the chasing scene where the Peterbilt truck hits a swat van, the truck's right front light is damaged. In the next scene, the light seems to be undamaged and then, damaged again. (01:14:00)
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: The Joker fires a rocket-propelled grenade at the Tumbler, sending it crashing end over end. In the final tumble, as it loses the last of its momentum, it's rolling to rest on its roof. The camera angle then changes and it's suddenly regained momentum, rolling again so it lands on its wheels.
Continuity mistake: Joker and Two-face are in the hospital; Harvey is about to flip the coin to decide if the Joker lives or dies. The camera angle switches back and forth between the Joker and Harvey. From one angle Harvey is wearing the monitor clamp on his middle finger with the grey wire, from the other angle it is gone. It disappears and re-appears every time the camera angle changes.
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: When Eric Roberts gets in the car with Two-Face, the car seems to go from being parked to going full-speed in a split-second. As he's getting in the car, Roberts is talking to his driver, and just as he sits down, he sees Two-Face, and the background appears to be moving by very quickly behind him. The car wouldn't have had time to even pull away from the curb yet.
Continuity mistake: After the Batmobile is hit by an RPG, Batman steers the car through the concrete barrier out of the traffic lane. As the car crashes through another wall, it lifts from the rear and the driver side rear tire is seen flying off the car. For the rest of the scene, all the tires are still attached.
Continuity mistake: When Bruce gets on his motor bike on the way to the apartment, overlooking the governor's speech, his hair is all greased back. But when he gets off the bike and takes his helmet off, his hair is fuller and not as greasy. When they cut to him inside the apartment, his hair is once again greased back like it was before he got on the bike. (00:57:30)
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)