How To Write A Demo Reel Story . A voice reel is the same thing as a voice over demo. But today i want to emphasize just how good your demo reel must be. How to Write a Credible Fantasy Story (with Examples) wikiHow from www.wikihow.com As a film editor i don’t have a showreel. No reel is better than a bad reel. Don’t go over 1.30 for a first reel, even less (1 minute) in some countries.