"He starts to change first perhaps mentally. He starts to get very speedy and hyper and exuberant. So the first manifestation of what’s been happening to him is mental rather than physical. But then it’s also physical because of the sugar lust. I’m just trying to see what the two things do and how far it goes. My interest in insects is more than I deal with in The Fly, actually. It’s phenomenal that any insect transforms. They all do. That’s part of being an insect."