“Spider-Man: Across the Spider-Verse” slung its webs back atop the box office ranks while “The Flash” saw a drop faster than the film’s speedy character. And yet ‘Spider-Man: Across the Spider-Verse’ has distinguished itself as one of the biggest movies this summer season.” “Spider-Verse” beat out “Elemental,” which took second place for the second week in a row with an …
