Spider-Man: Across the Spider-Verse has several details which needs you to pause it in order to get them.
- The caption seen at the very beginning of the preview switches to Tamil for a moment, offering a bit of a lead-in to the segment set in India later on. It also briefly flickers to Spanish, teasing the switch to Nueva York right after the trip to Mumbattan.
- The drum set that Gwen is playing in the opening scene has the name of the band stenciled on it: The Mary Janes.
- In the opening, Peter/Lizard from Earth-65B can briefly be seen wearing the same blue, teal, and white polo shirt as the Peter from Spider-Man: The Animated Series. There's also an instance of the Parkers and the Stacys having dinner while in costume for Halloween — Peter is wearing a dinosaur onesie, Captain Stacy is an Old West sheriff, and Gwen just has a t-shirt with a picture of a traffic cone on it, suggesting she dressed up as VLC Media Player.
- On the wall of Miles' and Ganke's dorm room, there are two newspapers with headlines about Quake from Marvel's Agents of S.H.I.E.L.D..
- Miles's apology videos only appear for a split second, but there's lots of gags in them.
- The first video has 69 million dislikes and only 87 likes. The second apology follows with the absurd ratio, having 70 million dislikes and 90 likes. Both videos also have more dislikes than views somehow.
- The video's comments:
(Baby powder video): old spider-man didn't need baby powder
(Mustache video): i heard it was made from actual spider legs tho fr - When Miles catches the Spot in a web held together by his portals, he taps him on the head. As he does this, the words "Good Cow" briefly appear on the screen.
- During the Spot's recap of his backstory, one of his flashbacks shows the spider that bit Miles being forcibly transported from its home universe, Earth-42. Before the portal appears, the spider can be seen in a classroom crawling towards a teenage boy with braided hair, though his face is turned away. We later see this boy in the film's ending, where he's revealed to be this universe's version of Miles.
- The pack of gum the Spot steals from Mrs. Chen's store during his brief visit in her universe is labeled "Brock's Venomint".
- When Miles first enters his room after being grounded, there's a campaign sticker for Michelle Obama on the wall right next to his door, implying that she either was or at least ran for president on Earth-1610B.
- The "True Life Tales of Spider-Man" cover
for Miles Morales returns from the first film, as one of the floating items in his bedroom. It's updated with Miles' current look, alongside the tagline "Saved the multiverse... Now what?" - At the start of Hobie's backstory Info Dump, he removes his mask but has his face censored, teasing, "You think I'm gonna show you my secret identity?" A few seconds later, when he says he enjoys "having a laugh at the pub with the mandem," a picture of an unmasked Hobie with his mates is one of the images that quickly flashes by.
- During the same infodump, one can briefly spot an image of Kingpin on a billboard with the words "Serve the Man" written next to it, implying that in this universe, he is the Prime Minister.
- When Miles arrives in Nueva York, the residents there are introduced with captions that give their name, Spider-Man identity, and home reality. Eventually, so many Spider-People appear at once that it is impossible to read all of the captions without pausing.
- One member of the Spider-Society is Tarantula from Earth-1610A, while later in the film Gwen's watch shows her traveling to Peter's universe which is identified as Earth-616B. This implies that any reality given the same designation as the comics uses this letter instead, so the official designation of Miles' reality is Earth-1610B and Gwen's is Earth-65B. This would mean the Earth-616 and Earth-65 of the comics would be considered Earth-616A and Earth-65A by the Spider-Society.
- The scene where Peter B. first appears when defending Miles from Miguel, you can see behind him what appears to be an unfinished white, red, and black suit, which could be the same second suit Miguel wears in the comics.
- While Miguel's explanation of the Canon Events only covers the most plot-relevant ones (namely being bitten by an enhanced spider and the death of a beloved family member and police captain), the holographic display shows many others, with both original comic panels and variations featuring other Spider-people. These include: freeing oneself from a pile of rubble, briefly renouncing the Spider-Man identity and throwing away the costume, losing a Gwen Stacy, encountering the Venom symbiote, and "hitting the jackpot"/sharing an upside-down kiss/getting married to a Mary Jane. In addition, Spectacular is shown cradling a mattress in his Canon Event as opposed to his Gwen. Explanation
- When Miles and the Spiders chasing him crash into Spider-Therapist's office, on the left side of the screen, you can see the therapist's diploma, revealing his name is Ezekiel Sims and that he graduated from Ditko University.
- When Miles loses the Day Pass while escaping from Miguel, he starts to glitch out. For a frame, you can see Miles wearing the cheap Halloween Spider-Man costume he wore when he and Peter B. infiltrated Alchemax in the first movie.
- Sharp-eyed viewers will notice a computer display showing that the Go Home Machine is transporting Miles to Earth-42 (where the spider that bit him originated) rather than his own home universe of Earth-1610B long before the reveal.
- During Miles' conversation with his mother in the ending, the lighting in certain shots reveals that Rio's eyes are now green rather than brown, with this serving as a subtle giveaway that Miles isn't in the right universe.
- Miles' room is slightly different from his normal room. His art supplies are nowhere to be seen, he now has a punching bag, and, most notably, the logo on his headboard is a completely different word.
- The television broadcast in Earth-42 gives some hard-to-hear exposition from J. Jonah Jameson, mentioning that New York is being ruled over by the Sinister Six Cartel.
