Continuity mistake: When they are floating down holding onto the flag, when the guys are shooting at them, we see a close-up on Lee. Lee now has on a brown shirt. It's supposed to be blue.
Continuity mistake: In the motorcycle chase scene in the cab, you can tell the interior fight scenes toward the end of the scene were a re-shoot because George's hair is noticeably longer, especially when he says, "This is not my fight", and turns around.
Continuity mistake: In the scene where Carter is fighting Kenji's men, Carter is carried and put on a chair by one of Kenji's men who is felled by a blow to the groin. After this another a man from the other side of the table is hit on the leg by a chair which travels under the table from Carter who pushes it with his leg. Carter catches a chair that's is thrown by him and tries to hit him from the same place but in the next shot he is right next to the guy who has another chair and is trying to hit Carter while Carter is trying to hit him. It would be impossible for the man to move, pick up the chair and start hitting Cater all in a second or two. (01:09:20)