Trucking is also a term used in making films. Trucking is the movement of a camera towards or away from the scene. Trucking In means moving the camera towards the scene and Trucking Back means moving the camera away from the scene. Most of the time the camera is connected to a rolling dolly on a track or to an arm that could be moved in multiple angles. In animation, Trucking In would be used with a multiplane camera to simulate three dimensions instead of a constant flat, two dimensional world.