13. At the end, Beetlejuice turns into a strange creature with a merry-go-round on his head. The smiling skull on top of the merry-go-round is Jack Skellington in the 1993 Time Burton movie The Nightmare Before Christmas.
14. Glenn Shadix (Otho) is close friends with the director Tim Burton. For this reason, he was one of the first people given the script to the movie.