During "Hot Patootie" a Transylvanian appears to mouth "lovely party", but her lip movements do not match the words.
As Janet and Brad scuttle towards the side of the stage at the close of 'Wild and Untamed Thing', she inadvertently impales his foot with her high-heeled shoe, causing him to wince and stagger in pain.
During the dinner scene, Brad thumps his fist down on the table, striking Janet's hand; she winces and flinches, then rubs her hand, keeping it just out of sight.
Janet's shoes are black at the start of the film, but switch to white once they reach the laboratory.
During "Over at the Frankenstein Place", Janet's cardigan is blue, but by the time she and Brad encounter Riff Raff it has become white.
The chalk heart Brad sketches on the church door during "Dammit Janet" varies in shape between shots.
Towards the end of the film, Dr Scott is carried from the castle by Brad and Janet, while Magenta and Riff Raff are just about to transport the castle away. After the explosion as the castle is "taking off", Brad, Janet and Dr Scott can be seen sprawled across the grounds, Dr Scott lying on the remains of his wheelchair, which he did not have mere moments earlier.
The red carpet vanishes briefly during Columbia's tap dance.
In the 'Wedding Chapel' scene the photographer's flash initially takes the form of a 1960s-style unit using disposable 'flash bulbs', but moments later it has been replaced by a contemporary 'electronic flash'.
After Frank has slain Eddie, a trail of blood runs across the floor towards the freezer, yet it is apparent he didn't strike him with the axe until they were both already in the freezer.
Frank's blue eye shadow is restored after he smudges it during "I'm Going Home".
When Frank pulls the lever to summon Dr Scott for the first time, he starts to lift one leg. When the shot cuts away and then returns, he is lifting the other leg.
When Janet faints, the hand she presses to her brow alternates from her left to her right between shots.
The hair clips in Janet's hair suddenly vanish as they step into Frank's laboratory; she is later seen removing them whilst boarding the lift to Frank's lab.
After Frank pulls the tablecloth away to reveal Eddie's corpse, he stumbles backwards and topples onto a chair. When the camera closes in on the table, his reflection is visible in the glass, standing. In the following shot he is still seated.
In the dinner sequence, Magenta tops up Dr Scott's wine glass on two occasions.
Riff Raff pours a drink into Dr. Scott's mug on two separate occasions — first in a close-up of Rocky and then again in the following wide shot. He similarly offers Brad a slice of meat twice: once in a close-up of Brad and once more in a wide shot.
A guest at the wedding ascends the right-hand side of the staircase twice before the wedding photograph is taken.
Position of the handbag when dropped during "Dammit, Janet".
Brad's shirt is unfastened on two separate occasions.
After Frank sings 'Happy Birthday' to Rocky and takes his seat, Magenta's arm can be spotted at the edge of the frame; yet in the following shots she is still seen serving dinner.
During the "Time Warp" sequence, the Transylvanian in blue carrying a tray of food passes it to someone in the bird's-eye shot, yet in his close-up he is still holding the tray.
During the floor show, the placement of the backdrop and the white curtain shifts. In wide shots, the curtain and the lettering on the backdrop appear high above the performers; in close-ups, the curtain and lettering sit directly above their heads.
At the end of "Time Warp", Janet nudges Brad with her elbow and twice says "Say Something" — first in a wide-angle shot and then, a few moments later, in the close-up.
Frank's position changes on several occasions during 'Hot Patootie'.
In shots showing the statues beside the two naked men, the left-hand statue initially has no speaker on its side, yet in a subsequent shot the speaker is clearly visible.
While speaking with Brad and Janet at the front door, Riff Raff taps the door with his index finger in front-on shots, but that gesture is missing in shots filmed from behind him.
Frank's hairstyle changes during the dinner scene while Dr Scott is discussing Eddie.
The way Frank's cape is draped across his throne changes during the number "Sweet Transvestite".
At the start of the laboratory scene, Brad's robe is open while he talks to Frank-N-Furter, and a few seconds later it is observed to be closed.
In the sequence for "Over at the Frankenstein Place" the newspaper Janet is holding is damp at the top and dry at the bottom, but in the next scene both sides of it are damp.
During the "Time Warp" a crew member is visible on the left-hand side of the frame, wearing a white shirt.
A crew member is visible walking along the catwalk above the stage during "Wild and Untamed Thing".
In the chase sequence at the end of "Hot Patootie," a second camera can be faintly seen mounted in front of the windscreen; it disappears in the following shots. Likewise, the shadow of the first camera is visible behind Eddie as he starts riding his motorbike up to the lab's upper storey.
During the song "I Can Make You a Man", a crew member's hands are visible pulling a cord attached to the pommel horse as Frank manoeuvres it behind the lift.
During Eddie's motorbike ride on the laboratory's upper storey, a large rectangular reflector can be seen below on his right-hand side.
The criminologist notes that the film is set in November. Yet, while in the car, Brad and Janet are listening to Richard Nixon's resignation address, which in fact occurred in August. The filmmakers included this to suggest that Brad is a geek who owns an audiotape of the speech.
Several minor continuity errors might be regarded as deliberate.
Frank remarks that Brad and Janet were "caught with a flat" [tyre], yet Brad only said the car had broken down, which could cover a number of different faults. Frank, however, has many ways of finding out things, with television cameras apparently dotted all over the place.
When Eddie dismounts the motorbike, the engine cuts out while his hands are raised and he is unable to turn the key.
Rocky, Frank's infant creation, hailed as the 'perfect man', has dental fillings in his teeth.
Not 'Chracter Error' but Revealing Mistake.
As Eddie rides his motorbike up the ramp, one of the Transylvanians on the left-hand side of the screen inadvertently knocks the head off the statue prop.
This is not a character error but a Revealing Mistake, exposing the statue as a fake.
Frank-N-Furter's tattoos are partly washed away during the pool sequence.
Janet raises her heel despite allegedly being stuck to the floor.
As Eddie rides his motorbike around once his song has finished, the black eye shifts from the left side of his face to the right.
Despite having been savagely hacked to death with a pickaxe, Eddie has no wounds at all and is clearly breathing.
When the castle takes off at the end of the film, the backdrop nevertheless continues to depict it.
Although Brad and Janet are caught in the rain outside Dr Frank-N-Furter's castle, only the corners of Janet's newspaper are damp.
The light Columbia uses on Frank-N-Furter during "I'm Going Home" comes from a Fresnel, so it doesn't produce the same kind of illumination as an actual spotlight.
As Brad and Janet are being undressed, Brad's jumper is pulled over his head. The shirt underneath is clearly already fully unbuttoned, to hasten the process.
A wire hoists Doctor Scott up the staircase on the second occasion.
