Various shots of NFB film crew on location shooting IMAX 3D film "Transitions"; TRAVELLING SHOTs from train looking up to white cliffs, PAN to shot of camera rig at front of train as it passes through a series of small tunnels (1:07). MLS of train passing by with film crew on flat car (0:29). Several shots of IMAX 3D camera rigged on flat car pacing CN train moving on parallel tracks (2:54).