Neatness of the face paints on Percival.
When Percival is thrown from the car, how far zipped up his jacket is changes.
When the first news people chase Susan Sarandon's character to her car the camera's battery falls off. With a nod to continuity it stays off in the following shots of the scene. Factually though this would render the camera useless. The camera wouldn't work and since the viewfinder is electronic it would be dead, or blank. Even in the extremely unlikely event the cameraman didn't notice the weight and balance change of the battery having fallen off the camera's shutting off and being dead would have been noticed by the cameraman.