Continuity mistake: There's a rubber flower (a toy sunflower with sunglasses) on Mike's desk. When Captain Howard answers the phone, it goes from fully straight and vertical to hunched over as the shot changes. Throughout the whole duration of the scene, the flower is straight in the wider shots with Pantoliano standing by the desk, and 'wilted' when the framing is focused on Martin Lawrence. (00:33:20)
Visible crew/equipment: When Will Smith breaks through a window when the bad guy lurking at the madam's place throws him into it, in the second shot of the stunt (the one with the camera at ground level), the camera wobbles, hit by the debris right before it cuts to the side view. (00:33:05)
Continuity mistake: Inside the Al Capone suit, Captain Howard asks the Bad Boys who the guy on the chair is. "Eddie Dominguez," says one. The captain is chewing gum, arms down at his side. In what's supposed to be an immediate follow-up, Martin Lawrence adds, "Yeah, the ex-cop." Joe Pantoliano in the foreground is taking a puff from a cigar instead. (00:29:05)
Audio problem: When Noah and Casper follow Julia on the roof and then narrate to the audience her amazing off-screen escape out of their range of sight and fire, Casper says two lines ("I can't believe she made it!" and "Jesus!") without even moving his lips. (00:28:55)
Continuity mistake: When Martin Lawrence is under the desk with the rotting corpse on top, on the couch behind him there is a document with a slight pink hue. The document is straight throughout the scene, except for the shot when Lawrence gets up, when it's tilted. (00:20:10)
Continuity mistake: When Mike is being randomly racist against the two Hispanic cops in front of the police locker, Will Smith's hands are close to his body, thumbs up, and he is half a step behind Martin Lawrence. One of the cops answers him with a "yo mama" joke, but in the foreground Will Smith's hands are in a different position and Lawrence is more distant from him and slightly behind. (00:13:50)
Continuity mistake: At the breakfast table, Marcus asks Mike, "Why you put me in this, man?" His son is picking a bit of food from the plate. The phone rings across the camera cut, and the sentence continues ("I'm with my babies"), but the kid's hand is off the table by his hip. He's back chewing on the food, with that hand raised only when, a few seconds later, the exact camera angle from before is used again. (00:11:35)
Continuity mistake: When Marcus is trying to convince his wife to give him some in the morning so he can be lighter on his feet, Martin Lawrence is sprawled with his left arm over the pillows in close-up, but in the wider angle he is in a much more normal position with his arm by his torso. (00:10:10)
Continuity mistake: In his first scene with Marcus and his wife, the lighting on them changes constantly between shots, and the same can be said for the position of Theresa Randle's hands on Martin Lawrence. (00:09:30)
Continuity mistake: When Martina Lawrence calls the bulky carjacker on his side a "big Popeye chicken-eating motherf…," the gun popping in frame from the top is held by a left hand. When the scene is shot with the camera on Will Smith's side, the guy is holding his gun with the right hand. It switches again, left or right depending on the camera angle used. (00:02:35)
Visible crew/equipment: When the bait hooker gets out of the car at the beginning of the movie, the lighting rig is reflected in the right car door. (00:01:55)
Plot hole: Marg Helgenberger's investigation reveals that the mole has called Club Hell from the precinct. However, if you look at the scene, the villains are not expecting them (Casper spots them practically by accident and asks out loud what the cop is doing there; Noah looks incredulous), and they are even having their ether traffic in the open at the club front. Note that technically it does not say that a call was made before the blitz, but considering the mole knew about it first-hand, it's unfathomable they wouldn't tip them off. (01:23:15)
Continuity mistake: At the beginning of the movie, Fouchet shoots the decoy cop with his gun. Once. The cop has two bullet wounds. (00:05:30)
Plot hole: The movie would have been over in barely over half an hour if the detectives could access the file of Eddie Dominguez. It contained the revelation of who the mole was, which unlocks by itself access to the villain at the end of the movie. It's never explained (nor justified) in the movie why this file would be so secret and out of reach for the Bad Boys, other than to keep the plot going.
Continuity mistake: When Martin Lawrence is in bed with Tea Leoni and a dog and brings up the disturbing image of him "coming with thunder," she suddenly has her hands on her own chest in contrast with the previous shot. (01:17:40)
Continuity mistake: When the two female characters enter the fancy hotel room, they make a point to say they will only be there for a couple of minutes. It is daylight when they go in. The visit is cut short (the one that's supposed to be a few minutes long) because of a gun battle in which one of the women dies and the other escapes. The escaped one gets out through the roof into an evening's sky. There's still light visible, but for a visit that lasts all of 4 minutes, it's far too quick a change. (00:23:00)
Plot hole: Why was $100,000,000 worth of heroin sitting in the police vault all this time before the bad guys stole it? Wouldn't the DEA have taken possession of the drugs long before that?
Continuity mistake: When Marcus meets Julie Mott she attacks him with a bat. He takes the bat off her and moves to leave. The next shot of Julie Mott sitting on the floor shows the bat in the foreground. Cut back to Marcus still holding the bat and he asks her, "Look lady, you ain't got no more bats, do you?" (00:35:00)
Continuity mistake: Just as Mike saves Marcus from being hit by the taxi, there is a blue bumper attached / missing / attached / missing from the taxi. (01:37:05)
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)
