Continuity mistake: While riding his motorcycle around the lab during the "Hot Patootie" number, notice how Eddie's black eye and cut changes sides in two of the flipped close-ups. (00:44:30)
Visible crew/equipment: Just after Brad says, "I really love the skillful way you beat the other girls to the bride's bouquet," as 'Dammit Janet' begins, twice it cuts to a shot of the "church caretakers" standing idly in front of the doors. In these two shots their marks are visible at their feet; there are outlines on the ground around their shoes, which vanish in following shots. (00:07:50)
Continuity mistake: When Janet is fainting after Frank comes down the elevator, she is lifting up one hand. In the close-up it's the other hand. (00:24:25)
Continuity mistake: During the dinner scene, there's a party hat on the back of Janet's chair. It disappears in one shot. (01:05:35)
Continuity mistake: At the beginning of Columbia's solo in "The Time Warp" she is sitting on the jukebox and wearing her gold glitter hat. Then, during the refrain, we see the hat on the floor near the jukebox, sans Columbia. Immediately after the refrain, Columbia has her hat back on as she does her tap dance. [There's about 9 seconds that Columbia's off-screen that she could have retrieved it, and about 4 seconds Magenta and Riff Raff are off-screen and end up next to Columbia and could have picked it up and given it to her, but there's no reason for it to have been out in the middle of the floor to begin with.] (00:22:10)
Continuity mistake: In the scene where Brad and Janet first talk with Frank in the lab (before Frank's speech beginning with 'Tonight, my unconventional conventionalists...'), Frank makes a comment about how Brad is "so dominant." At that moment, Brad closes his robe but does not button it. However, when the camera switches angles, it is buttoned. (00:31:33)
Continuity mistake: When Brad and Janet first enter Frank-N-Furter's laboratory, Janet's shirt is buttoned when she is hanging on Brad. When she twirls around to stand on his other side, her shirt opens during the turn, but as soon as she stops, it is buttoned up again. (00:30:35)
Continuity mistake: During the song "Dammit Janet", as Brad presents the ring to Janet, her purse is behind her at the top of the church steps. A few seconds later, the purse has moved to the left of her feet. (00:08:40)
Continuity mistake: When Frank-N-Furter is talking to Dr. Scott just before he reveals his relation to Brad, Furter's right leg goes from being on the arm of the chair Dr. Scott is sitting in to a standing position from shot to shot. (01:01:50)
Continuity mistake: During "Sweet Transvestite", Frank throws his cape off onto the throne. Part of the cape is over the left side of the back of the throne and the front of the left arm of the throne is not covered at all. There's a cut to Brad & Janet, then when it cuts back to Frank the cape is evenly draped over both arms of the throne covering them all the way to the floor with none on the back. (00:25:15)
Continuity mistake: When Frank is first descending in the elevator, he is tapping his foot to the beat. In the close-up, he seems to be just barely lifting his heel just a few inches from his other foot, but on the wider shots, his foot is lifting MUCH higher and about a foot apart. (00:24:05)
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)
Other mistake: When Frank is awakening Rocky he tells Riff Raff to turn up the power three more points; the power hadn't been turned up in the first place.
Continuity mistake: During the first verse of Eddie's song, you can see Frank standing in the background (right before Eddie goes over to sing to Rocky). In the next shot it shows Frank leaning against the wall. (00:42:31)
Chosen answer: She kicks him in the groin when he has her cornered on the stairway.