"Well, [originally] when we were planning the big elaborate dance sequence that would include a moving camera craning up to the ceiling on the characters that would really have more of a live action feel to them—there was always this nagging doubt in our minds that it wasn't going to work at all (laughs). We had sort of a back-up plan just in case, if none of this works we'll just turn off all the lights and Bella and the Beast will be dancing in a little spotlight in a darkened room like an ice skating show (laughs). Fortunately, when we got the first piece of test film back, it was amazingly breathtaking, made a big sigh of relief because we knew it was going to work."
January 1, 1970
https://en.wikiquote.org/wiki/Beauty_and_the_Beast_(1991_film)