Doomsday theory explores how the Fantastic Four might travel to Earth-616. It suggests Reed Richards uses Galactus’ ancient ship tech, combined with his own inventions, to build multiversal transport and rescue Franklin Richards from Doctor Doom’s grasp.

The Fantastic Four will join forces with other MCU characters in Avengers: Doomsday, but some of the best characters in First Steps will be left behind.

As promised last year by Disney CEO Bob Iger, Marvel Studios has scaled back to only 2-3 feature film releases each year, and with "The Fantastic Four: First Steps" in theaters, that's it for the 2025 lineup.

First Steps' is as action-packed as any Marvel film, though a little less gory than its previous entries. Here's everything parents should know before taking their kids to see 'The Fantastic Four: First Steps.

First Steps is the next big-screen adventure from Marvel Studios, and it brings Marvel's First Family to the MCU for the first time. But, as with any superhero movie, there's always the same question: what do you need to watch before you head to the multiplex?