Continuity mistake: The way the potato chips are arranged in the bowl (diagonally rising towards the right of the screen, with one chip protruding upward near the middle) changes with a camera shift (to no chip sticking up in the centre and other chips angled more towards the left of the screen). Nobody shifted the bowl 180° to account for the difference. A little later, the chips are in a mound (nobody is eating any), followed by being level to the edges of the bowl. (00:01:25)
Continuity mistake: The amount of tomato juice in Lou's [Lily Tomlin] glass fluctuates with camera angle/distance, increasing two times. More distant views from the table show about one-third full, whereas close-ups show about one-half full. (00:27:10 - 00:28:10)