A frenetic, visually breathtaking animated sequel that equals its predecessor by caring about the characters as much as the spectacle. — When Spider-Man: Into the Spider-Verse blasted onto our screens in 2018, it stretched the boundaries of mainstream cinema in terms of animation, metatextual send-up, and what was narratively possible in a superhero film with its bold multiverse plot. Since then, other multiverse movies have cluttered our screens, to the point…