Part of doing action movies is training in extreme sports. I once went snowmobiling with this group called the Slednecks in the Swedish mountains. I was coming down and turned to shout to a friend. When I turned back, I was headed toward a cliff with a 15-foot drop. One of the Slednecks had told me, "If you feel anything is off, ditch the sled." Well, I turned [the sled], so I was sliding to the edge, and I knew I was going to tip over and die. At the last second, I remembered: Ditch the sled. I jumped off, and when I looked up I saw the sled tumbling above me. I got out of the way before it landed. It was right out of a movie.