Okay, everyone here knows about the film no need to rehash. I thought it was interesting though: even though Wonka specifically says "It's not air, it's juice", look at the cover for the soundtrack album:
http://ecx.images-amazon.com/images/I/51eeqai0WNL._SL500_AA300_.jpg
She's clearly floating.
I just thought that was kind of a weird connection. I noticed it because I used to have the album when I was a kid.