The revised script differed greatly from Pogue's screenplay, though it still retained the basic plot and the central concept of a gradual mutation. Cronenberg rewrote the characters and most of the dialogue from scratch (as well as fusing DeWitt and Chandler--who had romantic intentions toward Barb in the Pogue draft--into Stathis Borans), and carried over a few key moments and concepts. Certain aspects of the transformation from Pogue's draft (such as the hero's loss of body parts) were expanded upon, and Cronenberg also layered in his trademark themes of sexuality, body horror, and personal identity. He also made it a point to keep Seth Brundle as articulate as possible for as long as possible, as opposed to Pogue's draft, in which Geoff Powell loses his ability to speak two-thirds of the way through the script.