During Dr. Brown's lecture, his pocket handkerchief changes positions between shots, and sometimes disappears altogether.
The picture of Anabel and Sanford published in the newspaper was not the shot taken of them on the street.
The first time Madison goes to Anabel's house, as they move towards the fireplace, a moving shadow from equipment can be seen across the back of the sofa.
When the insurance man shows the new car to Anabel on the street, the pole of the microphone is reflected against a window behind the actors.