On a sideline to your request, what do you have in place to promote your
screenplay - theatre/film/video?  If film/video, are you aware of IMAGE
(Independart Media Arts Guild)? There are producers,directors,
screenplay writers, etc. involved and you may get some good info on
distribution networks.  You can also get your screenplay acted out by a
local director to see how it works. just some thoughts.

Good luck, Cathrene Glick