Corrected entry: The opening of the film says it takes place in July 2002, but when we first see Will Smith you can see the World Trade Center in the background which had been destroyed ten months before. [The film was made before the 9/11 attacks, and the towers were left in as a sign of respect - still a mistake, but there's the reason.] (00:03:25 - 00:06:45)
Corrected entry: When Agent Jay is in the yellow tent with Serleena's tiny ship, he pulls out his video communicator and begins to talk to Zed. Zed can see Agent Jay via the communicator but when Jay closes the communicator and puts it away, Zed still has a view of Jay speaking with him over the big, egg shaped monitor. How could Zed see Agent Jay over the monitor if there was no video device available to transmit the conversation? (00:24:05)
Corrected entry: K is supposed to be a postmaster (citywide boss of the post office), yet he is working as a window clerk and wearing a letter carrier's uniform. Carrier, clerk and postmaster are three completely separate jobs, and the unions absolutely forbid 'crossing crafts'.
Corrected entry: When K shows his video store card to the clerk at the video store, the clerk remarks that the card hasn't been used since before she was born. How would she know that fact if she hadn't been born yet when it was used? Perhaps the card was only discontinued right before she began working there.
Corrected entry: When Agents Jay and Kay are standing on the elevator overlooking MIB HQ when he brought Kay back, you can clearly see the leash (it's a small black string on Jay's finger) that Frank the dog is on in a couple of shots, then when they get off the string magically disappears. (00:29:50)
Corrected entry: When they're walking into the pizzeria, Kay is quoting a regulation to Jay. As he does so, he suddenly drops to the floor to avoid being hit with the pan. But he dropped before he could have seen Lara, as she was far enough around the corner of the wall to have been missed.
Corrected entry: When Kay and Jay are watching the Light of Zartha video, the aliens are walking toward the MIB from their right on the beach, with the tall grass behind them to set the angle. Next time they are shown, the aliens are approaching from the agents' left with the tall grass behind them.
Corrected entry: In the scene where the half-destroyed subway car arrives in the station, when it stops, you hear a small chime-like noise. In New York City, however, this noise is only made when a subway car's doors shut and it leaves the station.
Corrected entry: In the preview, in the scene where it shows the wall flipping up and around showing all the special guns, if you look in the top-right corner there is a 2K1 AutoCocker (A futuristic-looking paintball gun).