The sequence on Earth-13122, the Lego universe, was animated by 14-year-old Preston Mutanga, who was hired after Phil Lord and Christopher Miller were impressed with his Twitter video recreating the entire trailer with Lego.
Phil Lord and Christopher Miller revealed that they told Sony the sequel would be the same size as Spider-Man: Into the Spider-Verse (2018), but it ended up having the largest crew of any animated movie ever with around 1,000 people working on it. They added that it has 240 characters and takes place in six universes.
Spencer Wan, one of the animators for the film, used spam emails he received as background textures for Hobie Brown's animation throughout the film.
At a runtime of 2 hours and 20 minutes (140 min), this is the longest American animated film to date, surpassing the previous record holder, Consuming Spirits (2012) by 4 minutes.
When Miles is rushing to meeting with the guidance counselor, he passes by his friend Ganke who can be seen hanging out in Miles' and Ganke's dorm room playing Marvel's Spider-Man 2 on his PlayStation 5. The game's version of Spider-Man, played by Yuri Lowenthal, also appears as one of the 240 Spider-Man variants seen throughout the film.