The glint of light and dust plume caused by a car driving in the distance during this scene was clearly visible in the theaters but was digitally removed for the DVD. It remains on a National Geographic Special DVD, however.
The point of origin for the dust plume (in red box) is moving from right to left. The point of origin for the smoke plume does not move.
Look for glint on the horizon. The smoke seen in this image is from a house chimney and the point of origin does not move. To see animation again, refresh your browser
The point of origin for this dust plume moves from right to left. Refresh your browser if you wish the animation to repeat.