Originally, the song DANCING WITH MYSELF by Billy Idol was supposed to be featured for this scene, but the studio couldn't get the rights to that song, so they ended up with the Fats domino song instead.
At 0:43 Christopher Lee is wearing glasses. But at 0:51 his glasses disappear. At 0:56 you can tell Dr. Catheter isn't impressed one bit by Gizmo's dancing to Fats Domino.
Jesus Christ I'm glad I never watched this movie as a kid. This scene wouldve upset me so much. I'm a grown ass woman watching this and I'm crying lol. Sadistic pieces of shit.