Working on a new story

I've now started work on a new story, tentatively entitled "Firewater." It's sort of a new way of doing things for me, because a close friend of mine requested it and gave me some parameters, since he wants to film it for a short film project. Since he doesn't have much of a budget, I'm suddenly restricted in what I can depict or have happen. It's still going to be a sci-fi piece, but I'm really going to need to work hard to keep it interesting and stay within the limits of what can be filmed.

Also, this is the first time I've written anything "on request." Usually, I generate an idea that excites me and go with it, or I run with something that popped into my head. The common denominator here is having an idea that excites me from the beginning. This kind of feels like I'm putting the cart before the horse in some ways, having to write fiction on demand. We'll see how it works out.