"What is the new primary business model for movie makers, game makers, software makers, ebook makers, etc.?"
You seem to be missing the point. Absolutely nothing has changed or needs to change with the business model of any of those. All of those are doing just fine. The ones pushing so hard for draconian laws (yes, they are draconian because they have significant impact on legal activity outside of what they claim to do) are the *distribution* companies (represented by RIAA, MPAA, and other similar misleadingly named associations). The producers have been figuring out that they don't need the middle-men (or not the same ones anyway).
If you want a specific example, look at Baen books. They have been giving away free eBooks of most of the novels of many of their top authors. Guess what? Their sales have significantly *increased* since they started doing that.
Game producers use the old distribution channels as a secondary delivery method now. Many are using Steam/Direct2Drive/Impulse or just using torrents or similar to directly distribute their games.