When Alec checks into a hotel near the end, he opens a room with the key to #1522. Then the next morning when the hotel staff find him still in the room, they enter room #1524.
When Alec is found in the hotel room unconscious, a doctor is called. The doctor opens the knot on his tie and unbuttons his shirt for examination. In the next scene, Alec's shirt and tie are buttoned and tied.
When Alec and Maida discuss their divorce, he sits down sideways on the couch with his left elbow over its back. She sits down too; in the next shot, Alec is sitting up straight with that elbow on his knee.
While Alec is driving Suzanne home, there is a closeup of the dashboard including the specific readings of the speedometer and mileage gauge. Later, during the drive, they begin to argue over the radio station and taking turns switching the channels causing Alec to drive erratically, but when there is another closeup of the dashboard, the readings are identical to the first closeup.