In the regular movie when the lawyer (Pfeiffer) is talking to Sam (Penn) in her house, a mistake is made. In the scene after she tells her son to go to bed but he ignores her, Sam and Rita are preparing for him to go take the stand. In the room with the red walls, after Sam asks her why she eats so fast, the view slides from him to her. In the middle of the slid,e the lamp in between them changes size. That probably means two cameras were used, with different zoom levels. It happens in a split second, so look for it. It's pretty fun.