"A real test on the shoot was how we were going to film the plates for the under the ice sequence (we did this without motion control). In the end, the 270 degree shot was actually realised by strapping the skier to a rotating gimble placed on the side of the mountain, this gave us enough spin and height off the floor so the camera could generate the speed and dip required to go under the ice. Then the same camera arm was used to shoot the skier standing 10ft off the ground on top of toughened glass to complete the under the ice scene. The DP could then swing the camera underneath him to the other side with ease. To get the viewer from under the ice back on top we need to get the camera moving very low and fast so we strapped the skier to a jeep dressed with snow which followed the camera car using real mountains as its background. Both slopes were created in 3D using textures shot on location."