During the sequence with the chairs, when the camera follows JoBeth Williams under the sink, you can see a reflection --in the toaster-- of a few men carrying the already constructed mound of chairs to place on the table.
At the beginning of the movie, the dog searching for food passes from a room to another. Before entering Carol Ann's room, the dog pushes the door to open it. If you look very carefully, you can see someone wearing red clothes walking in the room -you see him or her in the small space between the door and the wall...
In the climax scene when Diane is zapped and flies behind the stairs near the entrance of the kitchen, you can spot somebody moving their shoe out of the frame in a split second. It's to the far right of the screen and I think you may only be able to see it in the widescreen version.
When the Freelings are about to leave their house for good and Robbie tells his father to drive away, you will see him in a different pair of pajamas in one scene, after which it changes back to his old pajamas. This one is obvious and always good for a laugh each time you watch it after.
Around minute 39, as mom and dad and Dana and Robbie come into the bedroom to fetch Carol Ann after the storm, there is a small wall votive candle holder (Actually I'm not really sure what it is!) nailed just inside the door (actally mom touches it as she enters the room). Well, at first its nailed very very close to the edge, and a few frames later, it's at least 2-3 inches away!
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