They buy films, which are believed to be HP5+ and FP4, if I'm not mistaken, and cut them to size from a master roll. I don't know that they have a website, but they are in California and have an 800 number that you can find if you hunt around on the net for it. I think they primarily cater to the printing industry, but are a popular source for films among the alt-process crowd. I haven't used them.