Is it going to be a golden year for anime at the Oscars? In its 98-year history, the Academy Awards has recognized only a handful of anime titles — and never with more than one nomination per film.

“Demon Slayer: Kimetsu no Yaiba Infinity Castle,” the fourth film in a Japanese epic about a boy avenging his family, is poised to break box-office records when it’s released this month. That should ...