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Continuity mistake: In the scene in their basement Chris takes the painted bird from Regan who touches the wood post in the center of the room with her right hand. In the next shot she's leaning against it. (00:22:15)

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Continuity mistake: The alien spaceship's shadow falls on the sand underneath where Carol, Dr. Marvin and the others are looking at it on the bank of the Chesapeake Bay. In the next shot as they all walk into it they're in sunlight. (00:37:00)

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Continuity mistake: Carol's hair is parted in the middle as they stand and look at the alien spaceship as it sits on the bank of the Chesapeake Bay. When we see her inside the spaceship her hair is parted on the right. (00:37:00)

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Continuity mistake: The Motorcycle cop that is taken up into the alien spaceship with them asks, "What team has won the most World Series?". When he asks the question he takes his hat off which leaves a dark impression on his forehead, in the next shot it's gone. (00:41:40)

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Continuity mistake: As the alien's speak to them inside their spaceship, Dr. Marvin stands next to Carol. In the next shot from behind he has his arm around her waist. (00:40:15)

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Continuity mistake: Carol is tending to the barbecue as Gen. Hanley and Dr. Marvin comes out of the house after their discussion. On the table behind her are two coffee pots stacked on top of each other. In the next shot when they all go to sit down the top one is knocked over. (00:12:10)

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Continuity mistake: Carol is tending to the barbecue as Gen. Hanley and Dr. Marvin comes out of the house after their discussion. On the table behind her are two coffee pots stacked on top of each other. In the next shot when they all go to sit down the top one is knocked over. (00:12:10)

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Continuity mistake: At Operation Sky Hook, Gen. Hanley tries to get Dr. Marvin to stop the launch, but he can't. We see the rocket several times on the doctor's video screen and the rocket that actually blasts of is not the same one we first see, as the tail fans are painted differently. (00:10:20)

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Continuity mistake: Throughout the scene at 1972 Canyon Drive, the handle on the hat box to the left of the sofa changes in relation to the hat sitting on top of it. (01:50:55)

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Continuity mistake: After returning home from the movie set Chris walks in and says hello to Sharon. The bottle of Coke, the typewriter carriage and the page she is typing all move between shots by the time Chris gets to the desk. (00:16:10)

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Continuity mistake: After returning home from the movie set, Chris gets a letter from the White House which she reads with both hands. Regan says, "Hi Mom" and in the next shot Chris has a drink in her hand. (00:16:35)

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Continuity mistake: After Jake slaps Evelyn Mulwray, the vase on the table on the right of the sofa disappears between shots. (01:50:35)

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Continuity mistake: Gen. Hanley and another soldier on his left are knocked to the ground as the alien blows up a building behind them. One shot later the alien goes out to bring him back to the ship and now the general is on the opposite side of the soldier. (00:21:20)

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Continuity mistake: Carol talks on the remote TV set to Gen. Hanley and Dr. Marvin in the bunker and we see the rocket behind her with the No. 10 on its fin. The next time we see the rocket as it's being prepared for launch it has the No. 12 on its fin. (00:16:15)

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Continuity mistake: At 1972 Canyon Drive before Jake meets Katherine Cross, the dried flowers in the vase behind the sofa have been rearranged since we saw them at the beginning of the scene. (01:53:20)

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Continuity mistake: Gen. Hanley is up in the control tower as the UFO flies over the base. In the shots from the control tower there's heavy cloud cover but in the shots outside the control tower it's a clear day. (00:18:00)

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Continuity mistake: At the movie set, Chris says to Burke Dennings, "It just doesn't make sense" and the guy in the blue shirt in the background is standing up. In the next shot he's bending over. (00:13:20)

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Continuity mistake: The UFO lands at "Operation Sky Hook" and three aliens walk out of it. At first the building on the left is in direct sunlight then in the next shot as we see the dead alien lying there, the building is in the shade. (00:19:30)

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Continuity mistake: At the barbecue, Carol serves Gen. Hanley and Dr. Marvin two very thick hamburgers. In the next shot when they go to sit down to eat, the hamburgers have gotten thinner. (00:12:25)

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Continuity mistake: After returning home from the movie set, Chris' necklace is tucked under her collar. She doesn't go near it but two shots later it's over her collar. (00:16:30)

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