The "Doomsday" plot leak also seems to confirm the big fight at the X-Men mansion in the universe where Monica Rambeau ended up at the end of "The Marvels." That universe's anchor being is a Professor X (Patrick Stewart) variant that Doom wants to kill. Interestingly, Earth-616 and Earth-10005 -- where Monica is -- are on a collision course.

The Fantastic Four: First Steps has achieved lift off in theaters – and I imagine you have plenty of questions about the Marvel movie's ending and its post-credits scenes.

When Fantastic Four: First Steps begins, the titular heroes —played by Pedro Pascal, Vanessa Kirby, Joseph Quinn, and Ebon Moss-Bachrach—have had superpowers and been saving the day for four years.