"Mission: Impossible - Fallout" Actor On Co-Star Tom Cruise's Stunt Injury That Shut Down Shoot For 3 Months

The 6th (yes, SIXTH) "Mission: Impossible" movie is set to hit theaters this summer -- and according to one of the film’s stars, Simon Pegg, his co-star Tom Cruise isn’t giving up on doing his own stunts anytime soon.

"It's extraordinary," Simon says. "And [Tom] doesn’t show any signs of letting up."

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"He does some crazy, crazy things," he continues, referencing Tom hanging off a plane, among other stunts. "And in '[Mission: Impossible - Fallout],' it goes to another level."

And he isn't kidding!

In fact, on the set of the new film, Simon says that Tom actually suffered an injury.

(He broke his ankle! ? )

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"We had to shut down for 3 months," the actor says.

Oh no! Talk about dedication to your craft.

His commitment is paying off, though!

His co-star Michelle Monaghan told ET in February that the injury scene is actually going in the movie!

Watch the video above to hear Simon rave about Tom -- AND to understand what’s going on here: