I run a daily movie site and the best pay site that I can convert is
www.blakecollection.com .
The webmaster section on this paysite is run my Clement, the webmaster of dailymovies.tv
AP also converts good for what I heard.
And something that also works great is:
Buy several movie clips licenses, make a nice looking AVS with it, and promote this AVS....you'll get a lot of sales this way.
Thanks,
Steve