The animation, especially the characters are superb and involving. The art direction is visually stunning especially that ballroom.
But it is great direction, film editing, and the score that brings out the scenes and the characters' interaction that makes this animated movie a bittersweet masterpiece of a movie.
Moreover, it is so sweeping and epic in scale as to be compared to a Broadway musical and was the first ever animated feature film to be nominated for a Best Picture Oscar. (The Best Animated Feature Film category at the Oscars were created much later).
REVIEW BY HILATH
Beauty and the Beast on IMDB.com