Tom Cruise says he had to "train himself to breathe" for intense Mission: Impossible 8 stunts: "There were times I would pass out physically"

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Tom Cruise and director Christopher McQuarrie went all out for the last installment of the Mission: Impossible franchise.

“I truly want to puke thinking about the stress.

“So I had to train myself how to breathe.

There were times I would pass out physically; I was unable to get back into the cockpit.”

Mission: Impossible - The Final Reckoning hits theaters on May 23.