Continuity mistake: The driver of a carriage is racing along a road during a rain storm. In long shot, it is pouring buckets & buckets of water. Close-up of the driver & it is a light rain. Back to long shot, buckets again. Close-up, light rain.
Revealing mistake: Near the beginning, Megalon steps out from behind a mountain. It's obvious the "mountain" is a cardboard cutout.
Continuity mistake: In the scene where Ka and Bee jump over the "wall" towards the end after attaching the bomb to the boat, they have nothing on their backs; but when they jump into the water, the 'holder' of the bomb is seen on their backs again and the woman takes it off then.
Continuity mistake: During one of the pool scenes, balls disappear and change position between cuts.
Other mistake: The objective of the band is a cache of gold hidden some years ago in the firebox of a wrecked locomotive in the wilds of Northern Mexico. When they finally dig the firebox door out and open it, the strongbox is sitting inside a completely clean firebox, with nary a cinder, ash, or chunk of burned wood in sight. If the loco and cars had been abandoned after the derailment, there would still have been residue in the firebox.
Continuity mistake: As Charlie Brown, Patty, and Marcie are talking, the grandfather clock strikes four. Trouble is the pendulum is stuck in place, first on one side, then the other. It doesn't swing.
Continuity mistake: At the gas station, Arletty looks at the attendant discharging his gun in the nearby trees. In the next shots, she is holding her bag randomly with or without the shoulder strap up. (00:05:10)
Continuity mistake: When Linus and Lucy are talking to Snoopy he's got a shopping cart stuck on his right leg. Then, when he's getting on the bus it's suddenly on his left leg.
Continuity mistake: When Webster breaks into his first house, he has his briefcase open, so he can get at the items he needs, but before he leaves, he picks up the torch that is sitting on his closed briefcase - he never closed his briefcase; it was open all the time.
Factual error: James Caan plays a US Navy Boatswain (Bo'sun) Mate. His rank insignia of BM 1st Class should be worn on the right sleeve, but he has it on the left.
Audio problem: When the king's army officers are talking, the one who criticizes his adviser's mouth doesn't match with what he's saying.
Continuity mistake: While throwing clothes and lamps at each other, Vicky throws one shoe and then the next one, but, later, her shoes are back, and she throws them again.
Continuity mistake: After spotting her dream house Susan runs to the door. As she approaches the house it's not the same building she spotted from the car. (01:23:50)
Continuity mistake: At the baby's birthday party, Mrs. Wadsworth's hands are free as she speaks to the guests, but in the next shot her hands are on the sofa arm, clasped in the baby's hands.
Character mistake: After Clinton's phone call, Christine talks with her assistant and making fun of the "mourning", she says "We went directly to Streisand's opening at the Sands right from the cemetery." However, in Vegas Barbra Streisand never performed at the Sands; she did the International (then Hilton) and the Riviera. (00:05:15)
Continuity mistake: When Rizzo and the sailor wrestle atop the building, in the views from outside the building Rizzo has the lead pipe pressed against his ursine neck, while in the shots from the terrace it's further away. (00:05:40)
Revealing mistake: Despite them wearing masks at the end you can still see a lot of the amazons are being played by men - you can see hints of beards.
Continuity mistake: Having received the Colonel's big knotty stick, Shaft is cupping his special pouch; you can see it turn around (look at the strings). (00:34:50)
Continuity mistake: The attachment to the minisub is inconsistent. It is an open hook first then as it's being lifted it becomes an enclosed shackle looking quite different. Plus a figure now appears on the roof. Ben Gazzara has just gone below. (00:57:42)
Continuity mistake: Victor Pivert is in full road rage mode as he is waiting at a road stop after skipping most of the line speeding through the emergency lane. As he bickers with his French compatriot, he hammers his horn initially with the right hand, then after a pause he starts hitting it with his left hand in a side view, which turns instantly into his right hand at the cut. (00:08:30)