How Henry Cavill’s Mission: Impossible Character Changed During Filming

Henry Cavill in Mission: Impossible Fallout

The following contains MAJOR spoilers for Mission: Impossible -- Fallout, so STOP READING if you haven't yet seen the newest Mission movie. And really, take the time to go see it!

In the latest Mission: Impossible, Ethan Hunt (Tom Cruise) is hot on the trail of a new threat known as the Apostles, led by the mysterious shadow agent identified only as John Lark. What Ethan doesn't realize, until it's almost too late, is that Lark is hiding in plain sight on Hunt's own IMF team... as we, the audience eventually figure out that Henry Cavill is John Lark, posing as CIA operative August Walker. This double cross requires that we go back and watch Mission: Impossible -- Fallout a second time, because once you realize Walker is dirty, you want to know how he manipulated Hunt without his own knowledge.

It also required that Henry Cavill stay light on his feet, as he told CinemaBlend that his character's methods and motivations changed frequently on set, as the screenplay shifted and shaped to meet new needs. Explaining the process of playing a double agent, Cavill confided to CinemaBlend:

There were a lot of questions throughout, because Walker evolved throughout the movie. He was a very liquid character in the sense that he started in one place and then changed to something else, and then changed to something else again, His motivation was shifting to fall in sync with how the script was evolving. And sometimes guided the evolution of the script.And so yes, Chris and I were constantly talking. And I was like, 'Cool, so, where am I going to from here? Am I doing this? Am I doing that? Is it because of this, or because of that?' And he said, 'Well, this may change, so yes. But it's also because of that. And what we shot there, it IS because of that, but in a different way to how it was before.'

It has been documented that Mission: Impossible -- Fallout went through script revisions over the course of its production, with Simon Pegg saying on record that they basically started filming without a complete script, and Christopher McQuarrie saying to CinemaBlend that the break in production forced by Tom Cruise's ankle injury allowed them the time to go over plot holes and properly fill them in. A lot of those changes rested on Henry Cavill's broad shoulders, as his character -- August Walker -- had the most to hide from Ethan Hunt, and he had to protect real secrets until the director chose to reveal them to the audience.

When we mentioned to Henry Cavill that rewriting his character on the fly must have been maddening for him, as an actor, he says that his complete trust in McQ allowed him to dive in with no reservations and find the performance that worked for the movie. Cavill admitted:

It wasn't so bad! I mean, I had absolute faith in McQ. He's an amazing writer, and an incredible director. And, he was doing both. And so I knew that he had his hand on the tiller firmly And it was going to be 100% fine.

Based on audience reaction to Mission: Impossible -- Fallout, it certainly DID turn out fine. The movie is critically acclaimed, with a staggering 98% Fresh on Rotten Tomatoes. And it set a new high bar for box office, enjoying the biggest opening in franchise history. Here's Henry Cavill, explaining the joy (and challenges) with playing a double agent in the Mission: Impossible films:

Mission: Impossible is in theaters as we speak. Visit our preview page for more stories from the Paris junket that CinemaBlend attended. And be sure to cast a vote in the poll on our Rate & Discuss With Spoilers page for Fallout.

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Sean O'Connell
Managing Editor

Sean O’Connell is a journalist and CinemaBlend’s Managing Editor. Having been with the site since 2011, Sean interviewed myriad directors, actors and producers, and created ReelBlend, which he proudly cohosts with Jake Hamilton and Kevin McCarthy. And he's the author of RELEASE THE SNYDER CUT, the Spider-Man history book WITH GREAT POWER, and an upcoming book about Bruce Willis.