History Fridge / IsleOfDogs

* At the end of the film, Mayor Kobayashi, who has had HeelFaceTurn, is sent to prison with his co-conspirators, ''whom he betrayed, ratted-out and all still unrepentant.'' What are going to do to him in there?

* At first, it seems somewhat pointless that [[spoiler: there's a plot twist where Spots and Chief are long-lost brothers. But when you think about it, in a way, this genetically makes Chief Spots's worthy successor as Atari's guard dog.]]
* Duke mentions a rumor that Rex's favorite dog food company (whom King used to work for) has recently folded. Of course it would; a massive chunk of the canine population has been forcibly relocated to trash island. You can't sell dog food if there aren't any dogs to feed. [[FridgeHorror Who knows how many other dog-food companies have shut down due to their client base vanishing overnight. There might not be enough left to accommodate the dogs should they somehow return to the mainland]].

* The mayor's guarding of Atari with home schooling, a guard dog, and keeping him mainly in the estate makes sense [[spoiler: given all of the shady and illegal things the mayor was doing. Eventually, someone could come after Atari, and the mayor wanted to minimize the boy's harm.]]
* Chief's hardened but kind / protective personality and his skills at fighting [[spoiler: comes from being bred to be a professional guard dog]].

* Tracy's declared hatred of Mayor Kobayashi might seem a bit narmy and over the top. However, her behaviour makes more sense when it is revealed that [[spoiler: her dog (Nutmeg) is also on Trash Island.]] Indeed, Mayor Kobayashi is very lucky that his opposition has stuck mainly to verbal arguments and nobody has gone [[Franchise/JohnWick John]] [[RoaringRampageOfRevenge Wick]] on him.

* To some extent, but this is anti-FridgeHorror: Duke claims his brother committed suicide by hanging himself with his own collar. However, the act would require hands, something dogs unquestionably lack. This can be speculated as untrue, especially [[spoiler: when you take into account the RunningGag that a majority of the 'rumors' Duke hears often prove untrue (like Nutmeg mating with Felix, or the Aboriginal dogs being cannibals).]]
** Actually, most of Duke's rumors [[spoiler: are eerily accurate, although this is [[AchievementInIgnorance more likely due to dumb luck than genuine knowledge on his part]]. The Aboriginal Dogs ARE cannibals ([[NeverLiveItDown even though they aren't happy about it]]) Atari is exactly who he claims him to be, King's dog food chain did indeed shut down, and the Dog flu is implied to come from the facility where the lab dogs were tested. As for Nutmeg and Felix, we only have her word on that...]]
*** Also note how the dogs seem to have a pretty good grasp of how to operate simple mechanisms, and Duke specifically says his brother killed himself with his ''leash.'' If he had his leash still attached to his collar or was able to attach it himself, he'd simply have to find something slender and high off the ground or overhanging a drop to loop the handle through...
* We never get an explanation as to how some other dog's bones wind up in what Spots's cage. The lock on the cage may or may not be commonly available (the dogs in the former research facility had a key, and Atari's key worked on the dead dog's cage), but we're merely left to speculate on this. Especially since we don't hear about any ''other'' dogs dying in such cages.

* Nutmeg refers to her sister-in-law. So dogs can get married?
** The dogs have all been noted as being translated from "barks to English". It could be that, in-universe, there's some canine term for it that doesn't translate especially well to English. That, or "sister-in-law" was just the easiest way to put it as opposed to something longer and more convoluted like "the mate of my youngest littermate", or it's a bit of a more distant relation like "the mate of the middle brother from a litter twice removed from mine".

* At the end of the film, Mayor Kobayashi, who has had HeelFaceTurn, is sent to prison with his co-conspirators, ''whom he betrayed, ratted-out, and all still unrepentant.'' What are going to do to him in there?