Crew or equipment visible: Shadow of cameraman visible when Biegler and McCarthy chat with Manion at the train station.
Crew or equipment visible: Shadow of cameraman visible when Biegler asks the Thunder Bay Inn receptionist to page Mary Pilant
Crew or equipment visible: In the opening shot, the camera-car's shadow is visible on Biegler's car.
Crew or equipment visible: When Biegler first goes to the Thunder Bay Inn tavern and walks behind the bar.
Errors made by characters (possibly deliberate errors by the filmmakers): When Biegler returns to his house at the start of the film, McCarthy points to the United States Supreme Court reports and asks if they should read "a little Chief Justice Holmes", and Biegler also refers to "Chief Justice Holmes". Oliver Wendell Holmes was an Associate Justice of the Supreme Court, never Chief Justice.
Boom mic visible: At the conclusion of the scene with the dog in the court room, when the judge asks the sheriff's deputy to remove the dog, the shadow of a boom mic can be seen on the judge's face.
Continuity: Several times in the movie one of the characters makes a humorous comment and you hear the courtroom audience burst out laughing; however, when the camera immediately turns to the audience, they are shown completely still and without emotion.