When Sara is trying on a white dress, her son Joshua comes to the door. The end of his tie is 2 inches above his belt. As he turns and leaves with his grandmother his tie is now long enough to be tucked into his belt.
During the breakfast scene between Beulah Bondi and Lucile Watson, Watson's hair keeps changing between medium and close shots (from behind): It is much flatter in the scenes shot close.
During the breakfast scene between George Coulouris and Geraldine Fitzgerald, her hair is sensibly shorter in close-ups.
When Mrs. Fanny and Mrs. Mellie are riding in the car after an afternoon of shopping, there are various wrapped packages behind them perched in front of the rear window. But in the following cuts, the packages change positions several times.
At 1:43:02, Kurt's hands on Babbie's arm changes position.
At 58:53, camera and crew are reflected on the car.
Shadows of the filming equipment moves across the clothing and faces of Paul Lukas and Donald Buka during the patio scene.
At 00:35:00 when Anise says how do you do to the Muller family the shadow of the boom mic moves across the far wall near the ceiling.
When the family first enters the United States the boy states in German that it is good luck to have one foot in each country. After his sister admonishes him for not speaking English he repeats the phrase in English with no German accent at all.