When Madame Bovary asks Leon for money, he reacts by punching out one of the glass window panes. But on the next cut, the previously shattered window pane is now intact.
When Emma, Charles, and Leon are sitting in a Rouen restaurant, there is an opened wine bottle on the table without the cork. But on the next immediate cut when Charles asks the waiter for the bill, the cork is now in the wine bottle. Then on subsequent cuts, it changes back and forth with the cork being on and off the bottle.
Very near the end, during the voice-over narration by the Flaubert character, a long shot of Yonville pulls back. But a figure can be seen seemingly walking backward. The shot was actually taken pushing toward the town, then printed in reverse.