Matt Shakman went from dark humor in 'It's Always Sunny in Philadelphia' to bright superheroes in 'The Fantastic Four: First Steps,' and it worked!

Director Matt Shakman ('The Fantastic Four: First Steps,' 'WandaVision,' "Game of Thrones") reveals the filmmaking methods, production design influences, and rehearsal techniques that underpin his process.

As the filmmaker’s three-year journey wound down on the project, he realized a key moment was missing, and managed to shoot it within a few months of the film's opening.