When Entertainment Weekly asked Fantastic Four: First Steps director Matt Shakman if Downey Jr. filmed that post-credits scene, the filmmaker pleaded the fifth. "For others to talk about," he teased. However, Shakman did reveal that it was the Russo brothers who helmed the post-credits scene since it was shot for Avengers: Doomsday.

The first attempt at making a film about the superheroes was an extremely low-budget affair that was shot, abandoned and mostly forgotten about in the 1990s.

Happily, unlike most recent superhero movies, you don't have to know any backstories at all to understand it.

The Fantastic Four: First Steps finished with its own big introduction.

If the goal for The Fantastic Four: First Steps was for Marvel to finally get the comic world's first family right, then the mission has finally been accomplished.