The internet is buzzing about Pedro Pascal's fitness transformation as Mr. Fantastic in "The Fantastic Four." How did he do it? Well, I have a bit of an idea. In October, I arrived at Jason Walsh's private gym in West Hollywood.

First Steps' and 'Eddington' told us how he takes control when things get tough—and how it's changed over the years.

Pedro Pascal took his sisters Lux Pascal and Javiera Balmaceda to the world premiere of "The Fantastic Four: First Steps" in Downtown Los Angeles on Monday night.