Other mistake: In the FTI records room, when Arnold and Gerald open safe deposit box 999, the box is quite empty with a mirrored surface, and we can see the reflection of Scheck appearing behind them. The problem is Scheck's reflection is not backwards.(00:50:50)
Continuity mistake: At Hangar 51, after the Soviets open the crate with the mummified alien, Indiana grabs his whip and secures guns for Mac and himself. In the close-up and wide shot, Indiana is gripping the whip within his palm, but in the next shot, the whip is held with only his index finger; then it's back to being gripped in his palm. Also, while Indiana is aiming the gun at Spalko, the military jeep behind him changes its distance, depending on the shot.(00:13:15)
Continuity mistake: When Indiana is with Mutt while the boy rides the motorcycle, Indiana's shoes change; note the soles change from heels to flat rubber-type soles, then back to heeled soles.
Visible crew/equipment: When Kid Cole removes the noose from Jon's neck and helps him off the horse, in the next overhead shot there are multiple T-marks visible on the ground before the shot fades out.(00:37:50)
Continuity mistake: During the siafu ant attack, while fisticuffs ensue between Indiana and Dovchenko, note the direction of Dovchenko's belt, with its buckle prongs to his left. Then, when Dovchenko falls backwards and the ants swarm all over him, his belt is worn around his waist the opposite way, with its prongs to his right (neither are flipped shots).(01:26:55)
Revealing mistake: While Grandma Dynamite is on the roof sending smoke signals, Sonny is standing in the tree. When Sonny starts laughing we can see the bottom of his jagged clothing is now a mere straight line and his legs have vanished.(00:16:45)
Continuity mistake: Leah asks Moose if he brought the cutters, so he looks in his bag then hands Leah scissors. In the shots facing Leah she holds up the scissors by its handles, but in the shots facing Moose she holds up the scissors by its pointy end.(00:10:20)
Continuity mistake: After Scheck catches the duo in the FTI records room with safe deposit boxes, Scheck removes a painting from the wall while he rages on about the tomato incident; then he destroys the painting. However, when Arnold fights off the guard with the mustache, that painting is intact and back up on the wall in this shot.(00:51:30 - 00:51:55)
Continuity mistake: Helga Blabs It All: While Helga hides in the overhead ventilation shaft, the vent cover has either four, five, or six slat openings in various shots.
Continuity mistake: When Arnold and Gerald go to see Mr. Bailey at the Office of Information, Bailey's tie has diagonal stripes that change direction to the opposite way in some shots.(00:26:15)
Continuity mistake: Inside the FTI records room, Scheck tells Arnold and Gerald, "My guards will now lock you away where you won't cause any more trouble." As the FTI guards approach the boys, Gerald notices the two crisscrossed cutlasses hanging on the wall, with scabbards of different colors, but when Gerald reaches for those two weapons, the two cutlasses are facing the opposite way. Additionally, the lighter scabbard tip changes color, and the hooks they hang on also change, from transparent to silver.(00:51:50)
Continuity mistake: When Murray is told it's Mona's neighborhood that's to be demolished, he begins to speed. Murray then tells the kids to pray for the hunk of junk bus to hold together long enough to get them uptown in one piece. In the next shot, the rear right tire's hubcap flies off, but in the following shots, that hubcap is back on the rear right tire.(01:00:35)
Other mistake: While Arnold and Gerald are headed to FTI on the city bus, Murray tells them about Mona. When Murray says, "You meet a girl, you think it's forever," the animation is a bit skewed, as it shows the steering column going through Murray's right thigh.(00:46:25)
Continuity mistake: Helga Blabs It All: When Helga falls from the vent opening, she knocks the telephone and answering machine onto the floor. Just as Helga notices the tape in the answering machine, the push button telephone has changed to a phone with a rotary dial. It then changes back to push button.(00:10:05)
Visible crew/equipment: When Scorpius is choking Crichton and Crichton says, "Aw, what's the matter, Scorpy?", the boom mic pops into picture right above Crichton.
Continuity mistake: At the Grey Havens, just as Gandalf stands before his four brave Hobbits and says, "I will not say, 'Do not weep,' for not all tears are an evil," note the design on Pippin's scarf. When Gandalf says, "It is time, Frodo," the pattern on Pippin's scarf is entirely different, though it's the same style scarf. It then reverts back to the previous pattern when Frodo boards the White Ship.
Continuity mistake: When the police arrive at Victor's house the two guards in the security room decide to run. At this time the one with the long sleeved shirt is wearing his gun in a shoulder-holster. In the next shot, when those two guards are running out the door and down the stairs, the long sleeved guy's shoulder-holster has vanished, but as they run toward the van, the shoulder-holster reappears again.(01:32:50)
Revealing mistake: At the start, while Jo and her parents are inside their storm cellar, Jo's father attempts to hold down the overhead cellar door during the tornado. Then, just as the F5 yanks the cellar door up along with Mr. Thornton, we can see the cable link that is attached between the actor's back and the cellar door, for this stunt.(00:04:20)
Continuity mistake: In "Graveyard Shift," when Squidward says to that guy they think is the hash-slinging slasher, "If that was you on the phone and you on the bus, then who was flickering the lights?" look at the "order here" sign. It says "order hear" instead of "order here," which it reads in previous shots during this episode.