Continuity mistake: In the limo chase scene on the freeway, Joe and Jimmy overtake a big truck and pull in front of it, yet in two following shots, if you look out the back of the window, the big truck has disappeared, then reappears on a wide shot. (01:17:35)
Continuity mistake: On the freeway chase scene, when Jimmy Dix and Joe Hallenbeck are shot at, the window gets shattered by a bullet. In some later shots, the window is completely intact. (01:18:05)
Continuity mistake: In the limo chase scene on the freeway, just after Baynard's bodyguards shoot at Jimmy and Joe in the BMW, the limo speeds away and Joe drives after them, he clashes with two cars and the right side of the BMW gets damaged slightly if you watch closely, then in the following shot as we see the BMW speed off, the side where it was damaged has repaired itself. (01:18:10)
Continuity mistake: When the red Sunbird and the Caddy are driving sown the steep hill, the windshield on the Sunbird changes from passenger side busted out, to completely gone, to completely intact, when they hit the tree at the bottom. (01:18:15)
Continuity mistake: The whole car lands in the swimming pool, with the back end stuck up in the air and the front end down because of the weight of the engine. A couple of shots later with Darian and the pool owner on the phone, the car is now sat up on its front end, which is now propped up on the side of the pool. (01:18:55 - 01:19:45)
Continuity mistake: When Wayans and Willis are chasing the limo on the freeway, Wayans draws a picture of a bomb to hold up to the guys in the limo. He draws a large circle with about 6 lines coming out of it with the word "BOM" underneath it. When he holds the picture up at the window, there is only 1 line radiating from the circle. (01:20:40)
Suggested correction: The same drawing is used, the top is slightly cropped but the lines are still visible.
It's not the same picture. In the scene (not screenshot), the top isn't cropped and you see there're fewer lines, and the circle is different. Not only that, but we see in the car "BOM" is written differently than what we see when it's against the window. Also, when he first draws the bomb, the holes in the paper are on the left, but against the window they're on the right. One could argue he flipped the page over to start again, but we already know the final drawing is different.
Continuity mistake: Marcone goes into the parking lot, notices the white BMW, and shoots out the rear passenger window. The front window is now perfectly intact when previously it was shot at during the limo chase. (01:21:05 - 01:31:15)
Continuity mistake: When Bruce Willis and Damon Wayans are trying to tell the guards of the senator that they are carrying a bomb, they shoot the side window of their car only once but there are at least three or four holes in it. (01:21:10)
Continuity mistake: When Joe and Jimmy are walking down a tunnel going to Marcone's office, several players are running down the tunnel, and then you hear the voice of the big guy (Jimmy broke his nose in the pool scene). Lots of players are running down the tunnel, yet when the big guy grabs him all you see are the players in the distance, when we should see loads more players running past Jimmy, Joe and the big guy. (01:21:35)
Continuity mistake: After the limo crashed and Joe is standing next to it, take a look at the rear wheel of the limo. In one shot it isn't moving, in the next shot it is. This keeps alternating a few times. (01:22:40)
Continuity mistake: When Joe and Milo are up on the steel structure where the stadium lights are, just before Joe throws the bag of ammo over the edge, a sniper runs to the right in the background, then in a following shot, the sniper runs to the right again. It is the same sniper. (01:31:15)
Continuity mistake: After Joe kills Chet by punching his nose up into his brain there is an instant cut and as Chet is collapsing to his knees, he already impossibly has a stream of blood running out of his ears all the way down to under his shirt collar.
Continuity mistake: At the very end of the movie as Bruce Willis is talking to another character (I think its his wife I can't remember) the camera keeps switching between close-ups of Bruce Willis and the other character as each of them is speaking. Watch the cuts and bruises on Bruce Willis's face - each time the camera goes back to him the cuts and bruises very obviously change. They change between very severe damage to just slight scratches and light bruising.