After hastily concealing his Spider-Man suit beneath his regular clothes, Miles arrives (late) at his dad's promotion party. Initially, there is no sign of his Spider-Man outfit until a Spanish-speaking lady asks Miles if his "cool shirt" is a wet-suit; only then does the outfit magically appear beneath his clothes, even extending to cover his neck. A few scenes later, the Spider-Man suit disappears once again.
After spot kicks himself into himself, Miles (in costume) talks to his dad, who requests a crane to lift a police cruiser out of one of spot's holes. The radio he uses is on his right shoulder, where the scenes before and after have it placed on his left shoulder.
In Spider-Man: Into the Spider-Verse (2018), Miles' father is Jefferson Davis. In this film, his surname inexplicably becomes Morales.
As often, Gwen is the new recruit and yet she is sent on a critical mission by herself with no back-up whatsoever.
Miles runs out of web fluid, which is why he takes the train and taxi home, but he suddenly has fluid again when he webs the shoe robber.
In the museum, the helicopter falls down on people who should have long been evacuated by the police.
Miguel does not want to let Miles return home and chases him to prevent him from returning home. The only way for Miles to return home was through one of the "watches" everybody wore or the transportation device to return people to their proper dimension. Miles did not have one of the "watches", so all Miguel had to do was post guards around the transportation device to make sure Miles could not return home.
The kid saying "I don't think I want this costume anymore" clearly speaks with an adult voice.
In the collider, the "Spideys" try to stop Spot Guy with the strength of one string in "series" (one after the other) rather than in "parallel" (all of them throwing one string at the bad guy), which would greatly multiply the strength of the pull (think series vs parallel circuits).