Audio problem: In the third segment when Amelia is getting chewed on by the doll, her screams are out of sync with her mouth.
Factual error: During the car chase scene with the Mustang, the driver of the Mustang repeatedly shifts his automatic transmission from "drive" to L1. Also, one shot during the chase shows that driver's feet using a clutch to shift his automatic.
Continuity mistake: In the scene in which they discuss Sylvia smoking, the paper on the table is different between shots. In the shots of Sylvia there is some paper near the can on the left. In the shots of Sal, the paper is not there. (01:03:00)
Audio problem: In the "How Lucky Can You Get?" musical number, when Fanny is turning on the stage lights she is not singing, although Streisand's singing voice is heard on the soundtrack.
Continuity mistake: As Blood tries to persuade Vic not to follow Quilla June into the Down Under, he is hopping with his broken right leg raised. In the circle he makes after Vick stops, he puts his weight on the leg for two different steps without ill effects or complaints. (00:53:55)
Continuity mistake: At the very beginning when they are all getting into the yellow Ford car an outside of car camera cut from the front of the car to the side shows the lady's arm firstly inside, then rested on the door.
Continuity mistake: Jonathan explains how to deal with a biker, demonstrating on Blue who's sat on his bike close to the rail. Yet when he's talking to the new guy (Toughie)Blues bike is in the middle of the track and when Toughie comes around the track to attack Jonathan it is back in its original position.
Factual error: The 14th of February 1900 was a Wednesday, not a Saturday.
Continuity mistake: When John Deakin discovers the Reverend's body in the coffin, the Reverend's eyes are closed in one shot and open in the next.
Continuity mistake: When the RV is pursued by a white truck and two cars towards the end of the film, the weather changes from hot and sunny to dull between shots.
Continuity mistake: In the acupuncture parlour, when Sylvia Kristel begins masturbating, the needles are gone from her nipples and are nowhere in sight. (00:33:05 - 00:34:35)
Other mistake: Bobby, Clovis and Celia Bradley find a large gold nugget in a mine. An assayer says gold is worth $15 an ounce and values the nugget at $87,425. That would mean it weighs 364 pounds, more than double the weight of the record-setting 173-pound gold nugget found in 1869 in Moliagul, Australia.
Continuity mistake: After he raids the candy box in the parlor, Sigerson's face is smeared with chocolate. The stains change noticeably from shot to shot as the scene progresses. The smears on his chin vanish altogether, although he hasn't wiped his face. (00:49:40)
Factual error: The movie is set during the Great Depression, in 1933, but Charles Bronson gets in town aboard of a freight train pulled by an EMD NW5 diesel locomotor, introduced over a decade later. (00:01:15)
Continuity mistake: When Molly dismounts her horse near the end of the movie the blanket slides off. A second later the blanket appears back on the horse.
Character mistake: In the fight in the Shaolin temple the Bruce Lee impersonator fights 4 monks who are supposed to attack him simultaneously, and they do, but Miss amazingly obvious openings, to the point of spending long seconds hopping around without attacking. Many martial arts movies feature as Common Mistake the main character facing multiple enemies that fight quite inefficiently, but few are this obvious when it comes to waiting a cue. (00:13:00)
Other mistake: Peter Chang is billed in the opening credits as the one and only Fighting Instructors, plural.
Factual error: In the bar in Cartagena amongst the goods advertised there's a sale of slaves of color ("Negroes"). However the movie is set in the early XIX century and the sale the poster refers to (listing very specific figures) took place in South Carolina in 1769.
Revealing mistake: When the protagonist jumps two of the evil cowboys that are after his jewels, the stuntman on the right tosses aside the rifle in a quick deliberate move pretending to lose it. (00:10:25)
Continuity mistake: In the opening interview with the trucker, the wide shots with him leaning against the grill show just a few thin hair out of position. In the close-ups he sports much messier hair with large curl out of place in the middle of the forehead. (00:00:50)