Jean G

Long Live the King - S1-E15

Visible crew/equipment: The Seaview is attacked by an enemy sub. During the torpedo assault, wires used to rock the Seaview model are visible just above the submarine's aft bow. (00:23:15)

Jean G

Show generally

Continuity mistake: Throughout seasons 2-4: When the series went to color in the second season, the Seaview was redesigned with only one set of observation windows. But stock footage of the old multiple windows continued to appear for the rest of the series, usually with the film dyed blue.

Jean G

The Cyborg - S2-E4

Continuity mistake: At the end, Crane shoots The Cyborg Nelson in the forehead. It clutches at its completely intact face and falls down. We cut to crew reactions and then back to the fallen cyborg - and now its head is nothing but a jumble of circuits. Were those delayed-action bullets in Crane's gun? (00:46:40)

Jean G

The Cyborg - S2-E4

Continuity mistake: To expose The Cyborg duplicate of himself, Nelson disrupts the nerve controls on the computer facsimile's left hand. But The Cyborg Nelson's right hand is the one that subsequently malfunctions. (00:45:20)

Jean G

No Way Out - S1-E12

Continuity mistake: When Anna tries to kill Koslow, Victor spies on her from behind the ventilation grate. The ribbons fluttering on the duct cover disappear when the shot switches to Victor's point of view. (00:46:50)

Jean G

No Way Out - S1-E12

Factual error: Victor is crawling around through Seaview's incredibly roomy ventilation ducts, pursued by several crewmen. But the air conditioning that's fluttering little ribbons on all the vent covers isn't, for some reason, disturbing a hair on any of their heads. (00:44:25)

Jean G

The Magnus Beam - S1-E11

Revealing mistake: Crane overcomes his guard in a fistfight by hitting him in the face three times. But if you watch closely, it's apparent that not one of his blows connects. He "strikes" the air above the man's head all three times. (00:32:00)

Jean G

Turn Back the Clock - S1-E7

Deliberate mistake: Several of the roaming dinosaur segments here are repeated 2-3 times over. They're all recycled footage from producer Irwin Allen's own 1960 remake of "The Lost World," and Allen must have wanted to get as much use out of the dino shots as possible. (00:28:00)

Jean G

No Way Out - S1-E12

Continuity mistake: When Victor tries to get into sickbay, the guard stops him, pointing a rifle at his chest. But in the very next reverse angle shot, the rifle is again in its original position in the guard's hands, pointing at the ceiling. (00:35:10)

Jean G

Turn Back the Clock - S1-E7

Factual error: The diving bell descends to 4000 feet, where no light can penetrate and the ocean around them should be pitch black. But some strange, unseen phenomenon is lighting up the bell quite nicely for the camera. (00:21:15)

Jean G

The City Beneath the Sea - S1-E2

Revealing mistake: On the beach, Molina is petite, thin and small-chested in her wetsuit. Underwater, she mysteriously gains several pounds, bigger muscles and a much larger bust, thanks to a poorly-matched stunt double. (00:12:00)

Jean G

The City Beneath the Sea - S1-E2

Continuity mistake: Seaview is on the ocean floor investigating the underwater city. Two inserted stock shots then show it up near the surface at periscope depth. In the next shot, though, it's back on the bottom again. (00:43:15)

Jean G

The City Beneath the Sea - S1-E2

Continuity mistake: Seaview's windows form 8 horizontal rectangles in 2 rows across its bow. But the interior sets have windows that form vertical rectangles, and they're much closer together than they are in the exterior shots. (00:02:30)

Jean G

The City Beneath the Sea - S1-E2

Revealing mistake: When Seaview's crew recover the diver's body in the beginning and clear seaweed from his mask, the "dead" man is blinking. (00:01:20)

Jean G

The Price of Doom - S1-E5

Factual error: Crane clears an Air Force jet to land at the Antarctic ice station. But the station is located on a completely snow-covered sheet of ice with no runways. How and where could it possibly land? (00:27:30)

Jean G

Show generally

Deliberate mistake: "The X-Factor": Car-wreck stock footage turns the admiral's 1965 sedan into a much shorter, fatter 1950s model when it bursts into flames and rolls down the embankment. (00:26:00)

Jean G

Show generally

Deliberate mistake: "The X-Factor": When the helicopter is chasing Nelson's car, re-used footage from a first season show briefly turns the otherwise color episode black and white. (00:24:00)

Jean G

Killers of the Deep - S2-E15

Factual error: Due to the extensive use of borrowed footage from the WWII film "The Enemy Below," the 1970s crew of the renegade sub (who are not German and who wore civilian clothes in most shots) suddenly acquire 1940s German U-boat caps and uniforms. (00:30:00)

Jean G

Show generally

Continuity mistake: "11 Days to Zero": A saboteur on an overhead scaffold hastily sprays an X on the top of Nelson's car with white paint. In later aerial shots, the X is composed of 2 perfectly straight, thick lines stretching from corner to corner of the car's roof. No way was that X made in a few seconds with a spray can. (00:03:00)

Jean G

Doomsday - S1-E19

Deliberate mistake: The huge system and missile control boards containing the failsafe units suddenly appear on Seaview's bulkheads just for this episode. And of course, they disappear after this, never to be seen again. (00:15:00)

Jean G