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Trivia: Melissa Sue Anderson ("Mary Ingalls" in Little House on the Prairie) was initially given the offer to be Em, but she turned it down because she would have to do some nude scenes. Brooke Shields got the offer instead.

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Trivia: The "New York City" sets for this movie were previously used for the movie Hello Dolly.

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Trivia: A bullet from a rifle Charlton Heston owned was the inspiration for the design of the Alpha-Omega Bomb.

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Trivia: Higgins, Benjamin's Councilor in the afterlife, was the name of the dog in the first Benji movie. Higgins also played the dog in the TV show, Petticoat Junction.

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Visible crew/equipment: When Travis and Jessie investigate what was reflecting sunlight, a Kodiak Bear attacks. When Jessie climbs a tree to get away from the bear, you can see a hand reaching down to help him get out of harm's way. (01:15:00 - 01:16:00)

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Revealing mistake: On the maiden flight of the X-15, the B-52 that carries it to launch position has several silhouettes of the X-15 painted on it, obviously one for every time it carried the X-15 for a mission. Clearly the real B-52 they used for X-15 launches and they didn't account for the fact that this was meant to be the first. (00:48:50 - 00:50:05)

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Visible crew/equipment: While approaching the two test pilots in the hanger, the shadow of the camera can be seen on the lockers. (01:31:00)

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Revealing mistake: Just before the battle between King Arthur's men and Sir Mordred's men, Trimble Tom escapes from Sir Mordred's encampment in a rocket-powered chair. As he approaches King Arthur's Castle you can see the wires supporting the chair. (01:15:45)

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Risk to Death - S10-E7

Visible crew/equipment: As you see the surfer starting his ride the camera goes underwater, briefly revealing one or two scuba divers and a gadget (most likely a camera). (00:32:30)

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Risk to Death - S10-E7

Continuity mistake: A surfer snaps his neck while trying ride a dangerous wave. Afterwards the surfer is washed ashore. He is out of the water, but when the lifeguards arrive he is offshore again. (00:32:05)

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The Disappearance: Part 5 - S10-E21

Trivia: The season ten episode "The Disappearance" was the last of several "experimental" episodes used to see who would become the dog's new owner (Timmy was growing up). This episode produced the greatest feedback from viewers, thus sealing Lassie's fate in the next season.

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The Disappearance: Part 2 - S10-E18

Trivia: When you see Timmy and his Father searching for Lassie in an aircraft, look at the plane in the faraway shots. It's same plane used in the 1960 Ivan Tors series "Ripcord." (00:05:35)

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Revealing mistake: When the prisoners commandeer the balloon and proceed to take flight, you can see a television antenna on one of the buildings in the background. (00:07:20 - 00:08:00)

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