Tom Cruise is world-renowned for performing his own stunts, and he has a documented history with rock climbing. Most famously, for the opening sequence of Mission: Impossible 2 (2000), Cruise performed the climbing stunts on a 2,000-foot cliff at Dead Horse Point in Utah. While he was wearing a safety harness that was later digitally removed, he performed the maneuvers himself, including the famous "finger-tip hang" and the jump between rocks. He trained extensively with professional climber Ron Kauk to ensure his form looked authentic. While Cruise is not a competitive rock climber in his private life, his commitment to "tactile reality" means he has spent hundreds of hours on rock faces for his films. He also performed significant "urban climbing" for Mission: Impossible – Ghost Protocol, where he scaled the exterior of the Burj Khalifa, the world's tallest building, demonstrating a comfort with heights that few professional actors possess.