Plot hole: Spoiler. Agent M points out as highly suspicious that the twin assassins knew the location of Vungus, and High T backs her up on this, saying that only a handful of MIB officers could have leaked that information. High T also established that those aliens were part of the Hive collective. It turned out that they were not part of the Hive, and the Hive connection was made-up entirely by the villain himself...which is the Hive! What he did was absurdly counterproductive to his cause: nothing except the report he himself made up connected the Hive at all with the case.
Suggested correction: Maybe a wrong move by High T but more like a character mistake rather than a movie mistake. High T was trying to scare the agents into overreacting to what was perceived as a high risk threat. Then it backfired on him but definitively non a plot hole.
I don't mind the proposed changes of category, or even a 'demotion' to Stupidity. But I say it's more of a Plot Hole by the definition used in the website; " Events or character decisions which only exist to benefit the plot, rather than making sense." The whole plot moves along thanks to a deliberate decision by the villain who literally fabricates evidence to implicate himself.
Sorry but it COULD make sense. We have 2 aliens from planet X (which is presumed to be a "hive" territory) that - at that point in the movie - are perceived as killers. It makes a lot of sense for HighT to reinforce in Agent H and Agent M the fear of an incoming invasion by waving the Hive scare flag in front of them. HighT could not have predicted at that point in time that the twins would say "we need that weapon for the hive" before being obliterated, Thus starting a doubt in H and M.
I fail to see why it makes sense for him to tip them off about the much larger intergalactic invasion when he just needs to send them on a wild goose chase to buy himself time for the last part of the plan. He amply demonstrates that he can fake anything about their background. Or simply not fake anything at all;they have no Hive contamination, and so they are just refugees from a dead planet. Instead, he fakes evidence that implicates his faction and is caught hiding that forgery.
Maybe Stupidity is more appropriate.
Other mistake: Vic and Stu get into a shoot out inside the animal hospital with some thugs, guns firing all over the place. The building is full of animals like dogs and cats and parrots. However, the animals stay completely calm and quiet during the entire gun fight and seem unaffected by the rapid, very loud banging of gun fire. Even right after it, a cat that just had it's tail stepped on sits on a dead body and meows like nothing happened. This is completely uncharacteristic of how animals would act to loud gunfire in an enclosed building, especially in a vet's. (00:45:00)
Other mistake: When Godzilla emerges from the sea towards the end of the movie, what is he standing on? You can see the submarine at the side of him so the water must be reasonably deep. Then he just swims away. (01:37:15)
Other mistake: During the restaurant shoot out between Jr and the bad guys, he takes Sasha's weapon (Kel-Tec P-3AT) and opens fire on the bad guys. The Kel-Tec P-3AT is chambered in .380 and holds 6+1 rounds. During the firefight, Jr fires 9 times. We also see the bottom of a spent casing and it shows .22. (01:12:00 - 01:13:00)
Revealing mistake: A major selling point of the movie is the CGI technology used to de-age Will Smith. The effect works for the most part of the movie, including scenes in daylight, but in the last handful of minutes, maybe because of the plain 'happy-ending' light used, maybe for budget reasons, the face of Junior is thoroughly unconvincing, with a dramatic drop in quality in textures and modelization. (01:44:30)
Continuity mistake: It's a clear day at the end of John Wick 2 but pouring down raining at the beginning of John Wick 3, which follows immediately afterwards.
Continuity mistake: After we first meet Grimmel, there's a scene where a dragon charges him before he puts it to sleep. The view from under the dragon's feet show him getting very close to Grimmel but when the angle changes suddenly he's much further back before he's shot.
Continuity mistake: After Sandler shaves in the cabin he gets back on the deck unshaved. When they appear at the dinner he is shaved.
Factual error: Dr. Fielding is dead inside the JPL building. His blood is dripping onto a telegraph key and it is sending perfectly comprehensive Morse Code. The blood drips are too random to do that. (01:13:25)
Suggested correction: It's clear he was alive at one point, and the way he has positioned shows he was probably already sending that. There was a break from him sending it, and it's clear the kids didn't understand the morse code, which could be the point his blood was dripping.
That could be. OK.
Visible crew/equipment: Opening sequence, Noomi Rapace kills all three terrorists who have arrived by truck, commandeers their truck and loads her two clients into it to transport them out of danger. As she drives away, we see a bare arm, hand and rolled up dress shirt of a person standing in the back of the "empty" truck. (00:05:05)
Revealing mistake: On the way to the border, after Gabrielle has died, when the camera pans it on her face, you can see her eyelids shift and blink.
Revealing mistake: Mazhar is saved by Raghu who with his amazing strength pulls the chains tied to the tankers and breaks free. The chains supposedly pulled by the powerful trucks though are not in tension. (00:08:50)
Continuity mistake: After the wolves have killed the guy poorly sniping them at the old encampment location, Clair Hamilton glares at Larsen from her sitting position and moves towards him to ask more about what he just said about Father. During this sequence, Gina Carano's hat is burdened by a bit of snow or practically no snow at all, back and forth with no logic between cuts. (00:35:50)
Other mistake: While in the pool room, Zoey falls off the wall onto a portion of floor that hasn't collapsed yet and loses consciousness. This area is next to the section of floor that collapsed first. Jason jumps down to help Zoey. As he is helping her up, and onto the wall, that section of floor collapses, forcing him to grab the wall to avoid falling 20-ish stories with the floor. As he looks down drop, the section of floor that fell first is amazingly back intact. (00:59:20)
Continuity mistake: When Lance is telling the guard at the start that he's going to throw his gun to the snowman behind them, the snowman that is there was not there in a previous shot and appeared from nothing.
Continuity mistake: En route from the front door of Wayne's mansion to the table in the Batcave, the pile of pizza boxes in Alfred and then in Mike's hands continues to change in size and number: at first the pizza girl delivers 11 boxes, Mike slams on the table just 8, but he brought down the stairs twice that amount (without counting through freeze-frame the precise numbers, it's simply obvious at first glance that the pile is bigger in some shots and the pizzas themselves are pictured of inconsistent size).
Continuity mistake: Right after the scene where Nels saws up his gun, he walks into a store with his arms folded. His hands are down close to his stomach. When it cuts to the next angle, they are much higher at his chest. (00:26:51)
Character mistake: It's merely training, but her opponents are hostile and want to exclude her from playing, so it's funny then that they don't call Kim out for her actions being egregious fouls; she brings the ball trapping it between her feet in multiple cartwheels (you can't just hold the ball between your feet for prolonged amount of times and 'carry' it). You could also say she kicks the ball at an opponent's face on purpose, which is equally unsporting. (00:24:00)
Character mistake: Toward the end of the film, Detective Davis orders Captain McKenna to put his badge on the table. New York City police always refer to their "shields", not badges.
Revealing mistake: At the start when they're clearing the White House field Little Rock shoots her gun without her finger on the trigger. (00:04:20)