One of the writers who I admire, correspond with and follow avidly is Geoff Nelder. He's written such great books as Exit Persued By A Bee, Escaping Reality and more recently Hot Air. Read the review for the latter and see the video trailer here:
Personally I thought that the video came over brilliantly and also that this would make a superb film. Consequently I've been dropping less than subtle hints for him to write a screenplay for it. I'm really hoping that he does, even if it's just to shut me up.
Go on Geoff, you know you want to...