Jonathan pours a glass of juice to a depth of about two inches. In subsequent shots it's filled to near the brim.
When Jonathan leaves his hospital room to call Jennifer, he feels the door number. He traces the numbers as though he can see them, when his eyes are bandaged shut.
When Freeway comes to greet Jonathan, home from hospital, he's heard to be barking, but the dog itself isn't.
Dr. Morse is presumably murdered by Arnold, but no-one ever questions where she is.