You might want to speak to AndyMike, he used to work for a Latino site.

And these guys are a bit pricey, but you can check them out:
http://www.forestmen.com/members/breakingnews.asp

Escort sites are also a good place to hunt for film workers. A lot won't do porn, but you'll see a lot of familiar faces and you can e-mail them direct.

Cheers
Dzinerbear