More action sequences other than the arm-wrestling were cut from the final release including one where a baboon and a cat mutate together and Seth has to beat it to death with a pipe.
The Fly's vomit was made from Honey, eggs and milk.
The designers studied graphic books on disease to help develop "The Fly".
It took roughly five hours to apply the make up to Seth.
was the first choice to play Seth Brundle but turned the role down.
In the movie, Seth points out something on his hip when he is crawling on the wall. Originally, he had a third arm grow out of there, which he ripped out! They said they had to take that part out of the movie because it was too graphic and gory. The people were fainting and vomiting in the screening.
When movies are made, scenes are often
left on the cutting room floor.
Sometimes, there will be several versions
of a movie floating about on cable, tv or video etc. Other times, a Director may
release a special cut of the movie.