Continuity mistake: When Carter and Zhang Ziyi are fighting, Carter is wearing alligator skin shoes (brown). However, when Ziyi thrusts the sword at Carter and Carter falls back on a chair raising his feet, you see him wearing black running shoes with a white sole.
Visible crew/equipment: When Carter is fighting Zhang Ziyi, she thrusts a sword into his coat. For a split second, there is a shot where a man is crouched down behind the statue on which Carter is against, looking up at Carter and Zhang Ziyi. (01:13:45)
Revealing mistake: When Inspector Lee was running through the casino, his hands are bound together with tape. When he tumbles across a gambling table, his hands come apart. When he completes the tumble, he quickly puts his hands together again. (01:09:00 - 01:10:15)
Factual error: When Jackie and Chris are at the Casino. Chris goes to play craps and throws $100,000 down for chips. The croupier give Chris two stacks of 20 $500 chips, which equates to only $20,000. (01:01:35)
Suggested correction: He wasn't really focusing on how much money he threw. Carter was creating a distraction for Lee so the Security would not see him sneak in to find the plates.
Continuity mistake: In the police station, just before the explosion that supposedly kills Carter, we see Jackie with his shirt untucked on his way to his office. As he falls to the ground after the explosion his shirt is miraculously tucked in. (00:22:25 - 00:24:00)
Continuity mistake: When Carter is singing karaoke, first you see the girls beginning to join him on stage. In the next scene (right after the scene with Inspector Lee's reaction to Carter singing), you see Carter dancing with a DIFFERENT group of girls (it lasts a couple of seconds). Then, when Lee is calling out Carter, the original dancers from the first scene are back. Use the tall Chinese girl wearing the pink dress on the right side of the screen as reference in the first scene, then she disappears in the second scene and reappears in the last scene. (00:06:45)
Factual error: When Carter convinces Lee to head with him to L.A, apparently the plane they are leaving is a Boeing 757. When they arrive it is evident that they reached their destination in a Boeing 747-400. (00:39:43)
Continuity mistake: When Zhang Ziyi shoots Rosalyn Sanchez in the casino office, Sanchez is facing away from her. You see no blood on her back. Later, when Sanchez falls into Jackie Chan's arms, there is still no entry wound from behind and no blood. When he spins her around, you see a bullet hole in the front of her arm and blood smeared on the front of her arm. (01:10:45 - 01:12:40)
Revealing mistake: When Chris and Jackie are singing the Beach Boys song in the car, look at the steering wheel. When Chris Tucker begins to dance for a brief moment you can see that there is no key in the ignition. (00:02:30)
Continuity mistake: When "the Secret Service agent" is fighting Zhang Ziyi in the casino, Ziyi kicks her black platform boot into a cabinet door. A few minutes later Ziyi is fighting Carter in the casino and she does a kick, revealing her now small-heeled boot.
Visible crew/equipment: When Isabella tells Lee and Carter "they think I'm a crooked customs agent", right next to Carter's face is a crew member reflected in the window.
Factual error: When Chris and Jackie are stripped butt naked at the freeway, they were in Causeway Bay (on Hong Kong Island). It is impossible for them to go back to the Yau Ma Tei Police Station in Kowloon Peninsula. The only way to get there is by traveling through tunnels or using the ferry. There is no road that you can walk along.
Other mistake: When Carter and Lee walk through the Crenshaw 'restaurant', the Chinese woman who yells at them speaks very, very bad Chinese - the first half is incomprehensible and the last half is mostly mispronounced.
Continuity mistake: When the detectives are in the truck, the first view shows us a little dark sky, and the headlights of the cars are on, but inside the limousine, it's much more clear then outside, and the headlights are off.
Continuity mistake: When Carter is trying to bust the bad guy in the massage parlour there are several bottles of ointments and things on the table next to the bad guy. They switch places in a few shots.
Continuity mistake: At the very end of the film when Jackie Chan and Chris Tucker are saying their final good-byes Chris Tucker is wearing the strap to his bag on his left shoulder and if you look you will notice in almost every scene even in the mistakes during the credits the rubber thing on his bag is there and then in the next scene the rubber thing is gone, and during the credits the rubber thing is back but the strap is crooked with the rubber thing there. (01:20:00)
Continuity mistake: When Jackie and Chris are hanging from the bamboo shoot Chris has hold of the shoot in his left arm first then in the next shot it has changed and now he holds it with his right arm. (00:12:45)
Continuity mistake: After Chris Tucker and Jackie Chan have been chucked naked out of the car on to the freeway, they run to the police station to get changed into new clothes. When in this room, they have a little argument with each other and every time the camera pans across to Chris Tucker the clothes on the hangers keep shifting from side to side.
Continuity mistake: When Lee and Carter go to the Reing Plaza, they ask some guy there about some Zing, and the guy run away to Hu Li, but when the detectives talk to her, the guy who ran keeps changing, sometimes he's on the right, and sometimes he's on left.
Continuity mistake: After the detectives get the bag from Isabella, she shows them her badge in her bra, but before they get the bag from her, there's no badge in her bra. (00:39:15 - 00:41:55)
Suggested correction: True we don't see Isabella wearing a badge in her bra when Lee and Carter kick in her door, but when she arrives at the top of the building wearing her robe, she most likely put her badge on before following them.