Pifias

When James Carter takes the joint away from the man at the pool hall, the joint changes size.

The same store is passed twice when Carter jumps on the bus after catching Detective Lee.

When Lee tries to escape from Carter, the yellow cab changes from a Crown Victoria to a Caprice and back to a Crown Victoria again.

When Carter pulls the guy off the motorcycle, and he jumps on and takes off in pursuit, there's the sound of shifting gears, yet his foot is not on the gear shift.

In the Billiard Hall at the beginning of the fight, Lee goes to grab a barstool with his feet and it has a bright red seat cover and round metal legs. Right before he hits the bartender, it changes to a dull red seat cover and black painted two by fours for the legs.

The ransom of $50 million, in the denominations requested by the kidnapper, would total 2,400,000 individual bills. That amount would never fit into two suitcases. Moreover, that amount of money would weigh more than 5200 pounds.

C4 explosive (in the boot of the car at the beginning) cannot be detonated by gunshot.

In the event that the daughter of a Chinese diplomat was abducted on U.S. soil, the State Department (particularly the Diplomatic Security Service) would have full priority over the matter and not the F.B.I. as depicted in this movie.

During several driving scenes their are no keys in the ignition and yet the car is running and driving.

Soo-Yung loses her necklace on the floor of the limo when she is abducted, but later Lee sees the necklace on a waitress in the Chinese restaurant and recovers it.

When Captain Diel is telling Carter about the case he states that the Consul's little girl is ten but when Lee and Carter are at the jail talking to Clive, Lee tells Clive that the little girl is eleven. Lee is using the Chinese method of counting ages, where a person's age is calculated as "1" when you are beginning your first year of life, i.e., when you are born. This contrasts with most Western cultures, in which you are "1" at the end of your first year.

Some viewers incorrectly perceived that there is a Vietnamese flag inside the home of Consul Han who represents China.

There is no Vietnamese flag in the Chinese Consul's home. Two flags are correctly displayed in the Consul's home, the Hong Kong flag (white flower on red field) and the flag of the People's Republic of China (one large and four small yellow stars on a red field). PRC had just taken back Hong Kong from the British. While at some angles these flags hanging limp may look a bit like the Vietnamese flag (a single yellow star on a red field), they are distinctly Chinese and Hong Kong flags.

When Carter first meets with the F.B.I., he introduces himself as "James Carter, F.B.I." He should have said, "James Carter, L.A.P.D." This is Carter being cocky and thinking he is now actually working for the F.B.I.

When Carter (Tucker) and Lee (Chan) are getting to know each other at the beginning, Lee reveals to Carter that Juntao killed his partner (after Carter questions the very existence of Juntao). Yet, towards the end when Juntao is on the stage, after taking over for Consul Han, it takes Lee a while to recognize that it is actually Juntao. This could mean that Lee has only ever heard about Juntao's exploits but has never actually seen him before. It's safe to say that at the end, Lee connects the dots and finally has a face to match with the name.

When Lee and Carter are driving in the Corvette listening to The Beach Boys, there is a brief shot of the steering column and there are no keys in the ignition.

When Carter is picking Lee up from the airport, you can see Lee turn to his left and right saying "xie xie" which means thank you. However when the camera angle changes you can see that there is no one there.

When Lee and Carter escape from the Foo Chow restaurant Lee pulls the necklace off a Chinese girl, the necklace should've snapped. Yet later he puts the necklace on Soo Yung as if it's been fixed. Lee wouldn't have getting it fixed in that time since his only main concern was saving Soo Yung.

Lee tells Carter he was eating Camel's Hump. While this may have been an ingredient in Chinese cuisine it is rare. Furthermore, Lee is Cantonese, from Hong Kong and there is no such common Cantonese dish using camel's hump. It may be a joke.

When Tania Johnson hangs up on Carter we hear a dial tone. It's a useful cinematic device to accentuate the hanging-up moment, but you don't hear a dial tone on a cell phone.

The motorcycle being ridden by James Carter sounds like it changes gears when his feet are in the air.

When Tania Johnson answers her AT&T cordless phone, it makes the error noise that indicates the base is disconnected or out of range, yet she uses it as if having a normal conversation.

Chris Tucker commandeers a Moto Guzzi motorbike (probably a V65 Lario), but the soundtrack has the purr of a straight four instead of the throb of a V twin.

When Lee and Carter are meeting with Agent Warren and Agent Dan, Carter points to Lee and moves his lips but no sound comes from Carter.

When the building explodes, a camera crew is visible on the rooftop to the left.

Reflected in one of the blast shields during the bomb disposal training.

When Lee is on the bus, and jumps on the Hollywood street sign, it is clearly not attached to the overhead traffic light. In the following shots, the crane holding the sign for the stunt is visible.

When Clive's Jaguar explodes on the road, a camera is visible in the middle of the road.

Camera reflected in the window of one of the van's rear doors as Carter opens them up to get Soo-Yung out of it.

Toward the end of the movie we see a news van with "channel 8" and call letters on them that start with "W." Television stations in Los Angeles and any city west of the Mississippi River have call letters that start with "K" and not "W."

When Lee gets on the bus outside Grauman's Chinese Theater he travels a short distance and then the bus turns a corner, it travels a few blocks before Lee exits by grabbing a street sign. The sign is for Hollywood. However Grauman's Chinese Theater is on Hollywood, and the bus had supposedly traveled some distance before he got off.

This is an error in geography, a factual error, and a revealing mistake. At approx. 41:30, when the FBI is tracing Sang's call, the address stated is 620 South Broadway, Downtown. However, the address of the building they go to is clearly 556 S Broadway as the large numbers are visible in the establishing shot just a few seconds later (approx. 41:50). The actual 620 building is right down the street, and as of January 2021 houses the Jordan Flagship Store, as well as other retailers.

The audience later learns that Griffith is Juntao. Inspector Lee mentions to Carter that he saw Juntao and that he killed his (Inspector Lee's) partner. If he knew this all along, why didn't he mention it to Han at the banquet (which Griffith was present) celebrating the handover? After all, Han is Lee's personal friend.