Spider-Man: Across the Spider-Verse didn't feature cameos from the three live-action Spider-Men, though Tom Holland's web-slinger did receive a mention. Tobey Maguire and Andrew Garfield's respective Variants, meanwhile, appeared courtesy of archival footage from Spider-Man and The Amazing Spider-Man.
One of the sequel's editors, Andy Leviton, recently took to Twitter to share an in-depth explanation for how Garfield's Peter Parker was inserted into the movie.
What you might assume would be a relatively straightforward process was actually incredibly complex and, unlike The Flash, Spider-Man: Across the Spider-Verse didn't end up pulling any clips from YouTube for its big "cameos" (instead, it utilised footage directly from Sony's archives).
The movie's live-action elements surprised many fans, and Leviton would later confirm there were never any discussions about animating Maguire and Garfield's respective web-slingers. Given the explanation provided, we'd assume this means any future cameos would also be live-action.
That would require Holland, Maguire, and Garfield to film new scenes in costume rather than stepping into a recording booth, so we won't be holding our breath for any appearances in Spider-Man: Beyond the Spider-Verse.