Continuity mistake: Before Eddie Dominguez is shot sitting in the chair, the bad guy in the green suit is on the left of the large guy, but when the big guy pulls the trigger the man in green is on his right side. (00:27:45)
Continuity mistake: When Marcus and his wife walk up the stairs in the house, they are having a heated discussion and his wife (off camera) shouts down "and you don't even have your wedding ring on." At this point his wedding ring IS on his finger, then in the next shot the ring is NOT on his finger and Marcus attempts to put it back on. (00:44:10)
Continuity mistake: When Marcus is talking to his wife in bed about having some early morning sex, she gets up and he is leaning on his side. She tells him the kids will be coming any minute and when they do come bursting through the door, Marcus is now under the covers on his back. Given that we heard them approaching, there's no time for him to move. (00:10:25)
Continuity mistake: When Will and Martin are in Martin's car, just after they find the dead guy, watch the microphone hanging from the rear view mirror. Depending on the camera shot, it changes position. (00:20:00)
Visible crew/equipment: At the end of the car chase scene between the Porsche and the AC Cobra on the runway, a shadow of the camera as well as the boom can be seen just as the Porsche drives between the concrete blocks. This can be seen at normal speed but is best viewed in slow motion. (01:50:25)
Other mistake: When the bad guys are stealing the drugs and they use the spray to break the lock, they drag the chain off the bars, and if you look closely you can see part of the bar chip off and it's made of wood. (00:08:10)
Continuity mistake: In the scene at the beginning of the film, when the villain of the piece shoots Julie's friend, he proceeds to turn the gun on Eddie and shoot him in the leg. After Eddie reels back in pain and falls into the chair, a conversation begins. Throughout the course of this conversation, the drool that flew from Eddie's mouth and landed on his right lapel, disappears and then reappears. (00:27:30)
Continuity mistake: In the final car chase - in the close-ups - we see Marcus turning the steering wheel quite far from side to side. With the speed they are going that would make the car slalom severely - and probably go out of control. At that speed only very small movements of the steering wheel are necessary (and safe). (01:50:00)
Continuity mistake: In the party scene, when Fouche shoots Eddie Dominguez, his collar goes from being buttoned all the way to the neck and then being opened as the scene goes back and forth between shots. (00:27:25)
Continuity mistake: When Marcus Burnett drops Julie Mott off at Mike Lowery's apartment it's dark outside. When he leaves shortly after, there is daylight outside.
Other mistake: At the very end of the movie Mike has the bad guy down on the ground and he's got his gun in the guys face, we see a shot looking straight up the gun barrel with Smith's eyes over the top of it. If you look at the barrel of the weapon there is a little point of light at the back of the barrel. This is caused by sunlight shining through the firing pin hole in the back of the chamber showing that the gun has no round in the chamber. (01:51:20)
Continuity mistake: When Marcus wakes up towards the beginning of the film, he knocks a Florida snowglobe and some other stuff off the top of his alarm clock. In the next shot, the snowglobe is back on top of the clock. (00:09:30)
Continuity mistake: The kegs of ether in the truck have hazardous material labels applied to them. These are diamond shaped labels that indicate the class of material in the container. Throughout the chase scene they alternate between Flammable Liquid labels (solid red) and Flammable Solid labels (half red, half white). (01:10:45)
Continuity mistake: Mike and Marcus go to meet Sanchez and Ruiz on the steps, Sanchez is sat down holding a doughnut (or something) in his right hand and a coffee in his left. A few seconds later, when talking about bongos, there's a close up shot and the items change hands. Back to a wide shot when Mike and Marcus enter they switch back. (01:41:30)
Continuity mistake: When Julie takes the key for the handcuffs from the cupboard at Mike Lowrey's apartment, she puts it down her right side. When she unlocks herself at the end in the car, she takes it from her left side. (01:26:40 - 01:39:35)
Audio problem: When Mike and Marcus are driving in Marcus's car, just before they sing Bad Boys, in the shot over Mike's shoulder we see that what he is saying does not match the movement of his mouth. (00:22:40)
Suggested correction: But Will Smith is not speaking in that shot. Martin Lawrence is saying something corny ("I'm a baaad boy") that is the cue for the song. Smith is just mouthing under his breath.
Revealing mistake: When the two ladies go to the party relatively near the beginning, one goes off to the toilet. The other one gets shot (through the cushion) she then falls back on a coffee table which completely shatters before she even hits it. (00:26:10)
Continuity mistake: At the party scene in the early minutes of the movie, the bad guy who calls the two women to his place to "party" is shot once in the knee. Blood spurts and a gaping hole is made in his dark blue pant's leg by the bullet. Seconds earlier, the black hooker is shot three times. Where are the three gaping holes and blood on her solid white dress? Ah, there are none. (00:26:00)
Revealing mistake: When the computer is being hacked and the password and/or code for the database is shown on the screen, most of the display is for an Autodesk printer driver. (01:39:00)
Continuity mistake: When they're in the basketball court, Will Smith marches over to Martin Lawrence, saying "you left a strange hooker in my apartment?" He's holding the ice pack in his hand in the wide shot, but in close-up it's not visible. (00:48:55)
