FAQ

The porthole window on the machine is concave, because of this, it appears that the fly is on the outside of the window when in fact it is on the inside. Soon after the door is locked you can see the insect flying around in the pod.

The movie demonstrates that anything else in the teleporter would have been fused during the teleport process. So if Brundle teleported with clothes on, he would not necessarily be wearing them, but they would be somehow fused within his genetic makeup, likely killing him in the process.

Likely due to the plate being inorganic, and perhaps because the steak was no longer living tissue, it didn't happen.

Research scientist Seth Brundle (Jeff Goldblum) meets Veronica "Ronnie" Quaife (Geena Davis), a journalist for Particle magazine, at a meet-the-press event held by Bartok Science Industries, the company that provides funding for Brundle's work. In an attempt to woo Ronnie, Seth shows her his latest invention, a teleporter that transports matter from one pod to another. Until recently, he has only tried teleporting inanimate objects. However, when he successfully teleports a living baboon, he rashly decides to try it on himself. Unfortunately, there is a housefly in the pod with him, and the teleporter fuses its atoms with Seth's, causing him to slowly transform into Brundlefly, a human-fly hybrid.

The Fly is remake of Die Fliege (1958), both of which are based on a short story of the same name by French-born (later British) author George Langelaan (1908-1972). The story was first published in the June, 1957 issue of Playboy magazine. It was adapted for the screen by Charles Edward Pogue and later revised by David Cronenberg (who also directed the film). A sequel, Die Fliege 2 (1989) was released in 1989.

It's unlikely that a compound fracture such as this one would ever actually happen during arm-wrestling. Although some people have had their arms broken during arm-wrestling, there's never been a report of it being as gory or severe as the injury seen in this film. The other person would have to have a superhuman amount of strength, just as Brundle does in the film. Some people believe that the liquid seen between Brundle and Marky's hands during the match is something similar to his vomit-drop and that it somehow helped him break the man's arm. Others argue that the liquid was just Marky's sweat from straining so hard.

Perhaps not. The idea was to mitigate his mutations, not necessarily reverse them, and his unborn child would, he's guessing, provide some sort of extra source of genetic material. Yet he'd also be splicing his genes with the mother, and she still had her clothes—as established in the finale, teleporting with inanimate matter is as bad as teleporting with another living thing. Following the logic of the movie, the consequent result would inevitably be a grotesque abomination. At this stage his mental state has degraded severely, and it's been suggested by the crew that Brundle's plan was a matter of delusion and desperation rather than a worked-through, scientific idea that his "old self" would've concocted.