Dead Six. Predictable, I can see that... But it’s still good fun and that should just about sell itself.
If they can do things like Defiance and Falling Skies, Ringworld should be easy to produce.
I like Correia’s Monster Hunter series much better. Totally unbelievable, but a good read nonetheless. John Ringo’s Ghost series is a much better collection (I like the second book, “Kildar” the best), as long as you can get by the occasional Bondage scenes, as the writing is quite good.
I’m still wondering why no one has thought of producing a Ringworld video series or movie. After all, they did that one with the blue-skinned tree-dwelling aliens that seems quite popular.
The “Foundation” series also comes to mind. Game Of Thrones is doing quite well, so it looks like it might translate well also.
Then again, they really destroyed the Harry Dresden series when they tried to produce a (low-budget and poorly rewritten) version a few years ago. It didn’t help that the lead actor looked nothing like what Dresden is written to look like. The cheesy lines just made it worse beyond that.