Re: Make something new
The problem that Hollywood has regarding making films of SciFi books is money; With a few exceptions like Dune, War of The Wolds and, to head into fantasy, LoTR and The Hobbit, SciFi/fantasy books are not "mainstream". Although Harry Potter etc.have made Fantasy more generally appealing I suppose.
It would be a tremendous gamble to take, for instance Larry Nivens Rigworld and turn it into a film; no matter how much I wish they would. It would attract many SciFi readers (fans) but would it attract enough of the general film going public to make a profit? A film of Ringworld for instance would take quite a sizeable budget to make correctly and I cannot see it would generate enough of a profit for the Hollywood studios.