question about writing a screenplay...

[texasvenom]

i want to write a screenplay based on a book. is there any kind of permission i need to start writing it or can i wait until after im finished?

 

[JRy]

I asked a very similar question just a few days ago. My thread can be found here:
http://www.indietalk.com/showthread.php?t=11856

The short answer is no -- Read my thread for some more in depth answers from other members of the community.

Hope this helps you.