Continuity mistake: After Brad and Janet arrive at the lab, when Frank-N-Furter holds out his right hand to shake their hands, his left hand holds a champagne glass and the rubber gloves. The gloves go from lying over his pinky, to over his hand, to over the middle finger, between shots. (00:30:10)
Continuity mistake: When Riff Raff kills Columbia, she falls beside the spotlight, whose tripod base is at the aisle, directly behind three beach chairs in the last row. But when Riff Raff turns back around, the spotlight is gone and the last row consists of two beach chairs. (01:30:00)
Continuity mistake: When Rocky is first seen in the tank wrapped in bandages until he starts to stand, water is clearly in the tank but when he stands up fully, his bandages are completely dry.
Continuity mistake: During "There's a Light" Janet's sweater changes colour. First it's white, then blue, then white, then blue, then white. In the car, it's white, once they get out of the car, it's definitely pale blue from all camera angles and gets slightly darker as it gets wetter, then there's a 7 second shot where it's definitely white, then there's another two shots where it's blue, then they reach the door and it's white for the remainder of the time it's in the movie. It's been suggested that there's colored lighting, but nothing else picks up nearly that amount of blue, i.e. her pink shirt isn't lavender, its white buttons aren't blue, their teeth aren't greenish, etc. (00:13:55 - 00:17:15)
Continuity mistake: Before the floor scene starts Dr. Scott does not have on the fishnet stockings. As he rolls across the stage the stockings are back. (01:23:30)
Continuity mistake: During Columbia's solo in the floor show, her corset falls down. When she shimmies across the stage, she tries to fix it, but it doesn't work. In the next shot, it's perfect again. (01:17:05)
Continuity mistake: Shortly after Dr Scott crashes through the wall and confronts Frank, their conversation leads to Eddie's whereabouts. When Dr Scott tells Frank, 'I can assure you that Brad's presence comes as a complete surprise to me,' he is leaning forward in his wheelchair. In the next shot, when he says, 'I came here to find Eddie' he is leaning back in his wheelchair.
Continuity mistake: During the Cabaret show, when everybody's stone bodies are placed on the stage, Rocky's right arm is extended forward and he has red make-up on his eyes. After he is unfrozen, he moves his right hand away from his forehead and the make-up on his eyes is now blue.