In the bar, Peggy the cigarette girl is carrying a tray of cigarettes supported by a strap that wraps around her neck. Patricia then asks to talk to her in the dressing room. When they walk into the dressing room, Peggy is still carrying the cigarette tray, but the strap has disappeared.
At the beginning during the wedding scene, there is a woman with her right hand over her mouth behind the doctor as he says, "No....the undertaker. She's dead". As the shot changes to a wide angle, the woman has her left hand over her mouth.
When getting ready for bed, Pat unbuttons her jacket, but in the next shot the jacket is buttoned again and stays buttoned for the rest of the scene. This is because she changed her mind about going to bed and re-buttoned it.