Beauty and the Beast is largely considered to have some of the best animation out of the Disney renaissance and a large part of it is the titular sequence and ballroom dance, a gorgeous shot showing a panorama of a large pan around spinning figures in a complex room, all things that are very hard to do in traditional animation. How Disney usually animates is the head animators will make key poses, a specially drawn frame every second or so and in between animators will draw around 11 frames connecting the key poses. the complications come with consistency between frames, rotation and spinning in 2d animation often doesn't hold consistency very well but Disney animations pulled this one off flawlessly