Continuity mistake: When Dr. Morrissey comes to George and Judy's house on Sunday night after the fishing trip to bring them some fish, he sits down on the couch and removes his glasses. Then, in the next shot, his glasses are back on again. He wouldn't have had time to put his glasses back on.
Continuity mistake: The scene is when Doris is picking up Rock from the train station. When the shot is behind Doris's car, there is a girl in a blue dress and sweater walking in front of the car. The shot changes to in front of Doris's car, and the same girl is just shutting her car door and walking around the Doris'car.
Continuity mistake: During breakfast, Doris' coffee cup fills itself. First it shows the coffee about 1/4 inch from the rim when she's laughing at Rock. Quick cut to Rock, and then when it comes back to Doris, the coffee is to the rim (no time to refill), and as she takes a drink it she has to be very careful not to spill as it is so full.