Other mistake: After Mike is gunned down, Captain Harris visits the AMMO team hard at work to figure out who could have done it. However, it seems unlikely that they are so dedicated to their job that none of them had time to change clothes when we see another briefing after Armando's three other killings, which happened across at best days, more likely weeks, or the six months of Mike's recovery. Everyone is wearing the exact same thing. (00:19:00 - 00:21:00)
Other mistake: Mike has a spycam in the locket, but Isabel tears it off his neck. However, the device immediately stops working. Unless the 5' woman crushed the actual metal instantly in her fist, it should keep working and broadcast at least the audio, even if she snapped the cord free. (01:39:25)
Other mistake: When Mike goes through Isabel's file, it says that she escaped prison on April 10, 2019. However, the scene is set on August 22 of the same year, 2019 (it says the date right there as it checks "the last 2 months" of phone calls with Dorn). Mike was shot at least 6 months before (it says "six months later" in the wedding scene, which is where he makes his reappearance after the shooting scene, possibly more time passed). Mike was shot only after Isabel got out of prison, so that's impossible. (01:24:30)
Other mistake: Mike's undercover job ends in 1995 and has to take place before Marcus and him work together. The first "Bad Boys" takes place in the mid-nineties (there's a 1990 calendar but also a Michael Jordan retirement reference, so it's safe to say it's supposed to happen between 1993 and 1995). Mike mentions there that they have been partners at the precinct for six years. Moreover, in "Bad Boys 2," Marcus' yearbook from 1988 has Mike's signature with the Bad Boys motto; they were friends long before the first movie. There was no room for nerdy "Michael" to disappear for possibly years without Marcus knowing and the subject coming up before.
Other mistake: When Marcus receives the phone call from Theresa after the bad car 'accident', the phone screen is blank in the wide angle, and in close-up displays a 10:35 time, which is incompatible with what was already shown before. Moreover, Marcus's right hand changes position on it/off it between shots. (00:51:20)
Other mistake: After the blitz at the warehouse, Mike finds Marcus' messages on his phone. The time is 10:35. He has a brief heated exchange with the captain and "that guy" (there's always one) in the AMMO crew. Then he finally picks up one of Marcus' calls at 1:19. It wasn't a 3-hour argument. (00:45:25)
Other mistake: In the montage showing Mike and Marcus' parallel (but also wildly divergent) lives, Marcus asks Alexa to turn down the volume. However, the video he is watching pauses instead. In the next shot, it is paused again, but on a different frame. And before the fan goes haywire and hits the screen, the screen is already turned off (but the breaker hadn't tripped yet). (00:32:00)
