The Marvel Cinematic Universe just pulled off one of its most surprising twists in recent years. This time, it’s not with a shock cameo or unexpected villain, but by not destroying a universe. ‘The Fantastic Four: First Steps’ has officially debuted in theaters.

Doctor Doom's reign of terror is just beginning. Here's what to know about his role in the upcoming movie, 'Avengers: Doomsday,' including cast, release date and potential plot.