Other mistake: The type of gas pump Danny used when gassing up the car requires the lever be moved from the on to off position before the hose can be placed back into the pump. It is already in the off position before he finishes.
Continuity mistake: When Aladdin dances in front of Jasmine his hair keeps swapping between perfectly brushed and messed up.
Continuity mistake: When the main characters first decide to go diving, they are all wearing ordinary bikinis. By the end of the film, the surviving characters are wearing diving suits.
Revealing mistake: In the beginning of the movie, when Hellboy is speaking on the phone with "Dad", he's speaking on on speaker, but when the phone shows up, instead of showing a screen of a call on speaker with the duration on the call, the screen shows what would appear if he was receiving a phone call before accepting or declining. (03:35:00)
Character mistake: Some characters use the letter "s" at the end of a Pokémon's name when the plural of a Pokémon is just its name. The best example is when Pikachu says, "Roger must've sent the Greninjas to cause the car crash." Being a Pokémon himself, there's no way Pikachu, out of all characters, would say that.
Factual error: The film is set in 1987 but most of the street lights seen throughout the movie are LED street lights and some high pressure sodium Philips lanterns (produced from the early 1990s to early 2000s), neither of which were around back then. Similarly many of the shots of the M1 motorway show modern cars and smart motorway/variable speed limits, which never existed at the time.
Revealing mistake: When Julie is talking to Stuart about her future, snow is falling in front of her. We can also see the wind is blowing, as it moves her hair. The snow, obviously CGI, is still falling straight down, and doesn't interact when the wind blows.
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: 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)
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)
Factual error: The American soldier on the balcony is waving a 50 star flag. (01:30:06)
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)
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)
Other mistake: During the Macarena, the extra on stage closest to the camera is wearing an Apple Watch which was not yet available. (00:18:17)
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: When Dumbo is born, Medici is taking a bath. The amount of foam on his arm changes between the front and back shots.
Continuity mistake: According to the countdown, Jordan has less time to live (about 3 minutes) than Quinn, which makes the whole end with the morphine pointless. (01:09:00)
Character mistake: After the smoking seminarians joke, Bergoglio replies to Pope Benedict 's phrase about being alone "Isaiah 41, chapter 10." It's not chapter 10, but rather verse 10, of chapter 41. (00:52:50)
Continuity mistake: Red is barefoot for a long period in the movie, but when they run to the boat she's wearing barely-visible slippers, presumably to protect her feet while running outside.
Continuity mistake: The IV bag has the name of Louie at first but then changes into something unidentifiable and then back to Louie again.