Dance Spirit magazine, in its newest edition, features an interview Wayne McGregor, one of the choreographers who worked on '
Goblet of Fire'. The scan can be viewed
here.
Quote:
Rather than teaching a classic tango or waltz, he worked closely with director Mike Newell and composer Patrick Doyle to invent something new and slightly twisted. "I wanted to make dances that you would recognise, but were a little bizarre ... very Harry Potter."
He also mentions that the tango between Neville & Ginny was cut out of the movie.
Source:
Mugglenet