And now there's a new Blu-Ray with a 4K scan of the original negative! I have it, and while the resolution is the same, the image is greatly cleaned up and you can see more detail. I'll see if I can post it within the next few days or so.
This scene is so hot that it kick started my puberty back in the day. I love how better technology reveals more detail in the image:
When I watched (and fapped to) this scene on VHS, the image was so bad that I really thought the girl was wearing ankle-high boots.
When I watched (and fapped to) this scene on DVD, the image was better, and I saw that she was actually wearing high heels with ankle stockings.
When I watched (and fapped to) this scene on Blu-Ray, the image was better still, and I saw the lace trim on her panties and the cord pulling her across the floor to the chimney.
Finally, when I watched (and fapped to) this scene on the new 4K scan, the image was so good that I could now see the thin cords pulling off her clothes.
Ain't progress great?
The new Blu-Ray of this movie comes with a copy of the "Revised Final Draft Screenplay", and the attached picture shows the screenplay entry for the piano scene. Even though this is the "final" screenplay, they pretty clearly made further changes while filming.
The original plan was for the Girl Playing Piano to be stripped
completely naked. Reading the scene, note how she loses her shoes, her dress, her pantyhose, her bra, and her panties. There's no clothing left to lose at that point!
Why not strip her completely naked in the movie? Probably to keep the film rated PG-13. The actress was a Playboy Playmate just a couple of years earlier, so she isn't exactly shy about showing her muff. Full frontal nudity, however, almost certainly would have guaranteed an R-rating and hurt the box office take. What good would be a movie targeted to teenage boys if only those 17 and over could buy a ticket?
Her outfit is the film is different than in the script, too. Instead of a dress and pantyhose, the girl in the film is wearing a blouse, a skirt, and ankle stockings. This may be a concession to the practical special effects of the time, since its seems like a pair of pantyhose would be too tight to be easily pulled off by the tiny cords you need to keep hidden to make the suction effect work.
In the final cut, we see her lose her skirt and blouse on camera, but she loses her shoes, stockings, and bra all off camera. I wonder if they shot these effects and cut them for time, or if they simply figured the viewers' imaginations would fill in the blanks and therefore didn't bother.