When Glenn Ford and Debbie Reynolds are chasing the pigeon around the living room, they knock over the fireplace tools. In the next scene the detective chases the pigeon into the fireplace and the tools are upright, behind the screen.
While Elliott tells Nell he loves her, Herman the Pigeon is moving around on his left shoulder. In the next shot as she walks to the door, it is suddenly sitting on his right shoulder.
When The Nash's first get home and Harlow is waiting for them, Elliot Nash makes a drink and hands it to Harlow. When he accepts the drink the glass is full, however when he gets to the sofa the glass is more than 1/2 empty.
The blackmailer is scheduled to arrive at the house at 10:00pm. After Elliot shoots him and is preparing to dispose of the body Miss Chandler arrives with clients to show the house late at night.