While the episodes were produced in 1.78:1 aspect ratio, the backstories were produced in 2.39:1 aspect ratio.
In January 2021, it was announced that a continuation of the MonsterVerse in the form of an anime television series was in development. Brian Duffield was hired to serve as writer, creator, executive producer, director, and showrunner for the show; while Jacob Robinson would also serve as an executive producer. The project was announced to be a joint-venture production between Legendary Television, Powerhouse Animation, and Tractor Pants Productions; and was produced with intent to release exclusively to Netflix.
Skull Island was first announced on January 27, 2021, at Netflix's Geeked event.