02/10/04 Orson Scott Card reportedly isn't adapting his novel anymore — Dan Harris and Michael Dougherty have been selected to write the screenplay. (Variety)
If I remember well OSC wrote a first version of the screenplay, and then these guys are going to do a second one, probably because they're closer to the film industry than he is and better suited for it.
For more information there's a link on the Hatrack home page (at the top). It's all in there.