In Regards to your letter <[log in to unmask]>:
>
> A friend of mine (I know, likely story) wants to contact the
>  director-Screenwriter John Sayles. Any clues of his address?
>
> --Henry Jenkins
 
If he is a member of DGA (DIrectors Guild Of America) they will forward
postal mail to him.  I'd suggest trying send it to...
 
John Sayles
c/o Directors Guild Of America
7920 Sunset Blvd.
Hollywood, CA 90046
 
Please Forward          <=== This is important to mention this.
 
Hope this helps!
 
David
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