Cruise's 2014 fantastic sci-fi action movie featured a lot of grueling days in a massive costume.Cruise's character repeats the same day while battling deadly aliens alongside Emily Blunt in the movie. And the armor worn for the film was heavy, with versions weighing between 85 and 130 pounds.In 2017's The Mummy, Cruise finds himself stuck in a cargo plane as it crashes. To pull off a scene like this, actors would typically film it in a controlled setting like a sound stage surrounded by a green screen.Not Cruise, though.The star shot the scene in a plane that NASA uses to train astronauts.The scene was filmed in the plane which had to go up to 25,000 feet to get the look that Cruise was in zero gravity. The plane then did a free fall for 22 seconds.Cruise did the flight four times to pull off the scene.For the thrilling helicopter-chase scene in the finale of Fallout, Cruise spent 16 hours a day training to get to the required 2,000 hours to fly a helicopter on his own.But Cruise didn't just fly the helicopter. He also pulled off a 360-degree corkscrew dive in it, which would challenge even the most veteran pilot.When you see Cruise and the cast looking like they are battling G-forces in the jets, complete with distorted faces, it's because they really were.Cruise and the cast went through training so their dogfight scenes could look as realistic as possible — which meant sitting in the F/A-18 jets as they were spun around and took dramatic dives.In the opening scene of 2000's M: I 2, Cruise is seen climbing a cliff. And yes, that's really him.Cruise scaled the cliff in Utah with nothing but a safety rope. He also did a 15-foot jump from one cliff to another.In one scene, Cruise's Ethan Hunt has to dive into an underwater safe to retrieve the computer chip that will lead him closer to the villain.Along with having to hold his breath the whole time, he must keep away from a large crane that's circling around the safe.For the scene, Cruise first jumped off a 120-foot ledge. Then, in a 20-foot deep-water tank, Cruise held his breath for six minutes.Tom Cruise loves to run in his movies; it's become his trademark. But his ability to continue running came into question after a stunt went wrong on the set of Fallout.While jumping from one one building to another, Cruise hit the wall of the building the wrong way and broke his ankle.The accident halted production for months and doctors told Cruise his running days might be over. But, six weeks later, Cruise was back on set doing sprints.The Burj Khalifa in Dubai is the tallest building in the world, and Cruise climbed it.For Ghost Protocol, the actor's climb got him up to 1,700 feet in the air.He also fell four stories down by rappelling on the surface of the building.Cruise clung to the side of a massive Airbus A400M plane as it took off and went up to 1,000 feet dealing with speeds of 100 knots.To protect the actor, he was secured with a wire attached to the plane. He also had special contacts on to protect his eyes from debris.Cruise did this stunt eight times.While Cruise was healing the broken ankle he sustained earlier in the Fallout production, he went and pulled off the most amazing stunt he's done in his career so far.In the movie, Cruise's character and CIA tagalong August Walker (Henry Cavill) decide to do a HALO jump — a high-altitude, low-open skydive, in which you open your parachute at a low altitude after free-falling for a period of time — out of a giant C-17 plane to get into Paris undetected.Cruise did this for real by executing the jump 106 times over two weeks, many of them done during golden hour, a very brief period of perfect lighting that occurs just before sunset.