Re: Forrest Gump - working on Zemeckis' preference, they decided to invert the focus of the book... bringing the love story to the fore and backdropping his "adventures". As I said, working in partnership. In the book Forrest is actually a bit of a dick and quite unlikable, twisted by his adventures. That, I am sure makes for a compelling, possibly complex character, but may not have sold as well to audiences or producers looking for a whimsical fantasy hero. Further to that, due to the volume of material in the book the mostly just adapted the first 11 chapters and the final 2/3.
Re: The Postman - it in fact appears that Roth's draft of the script was, allegedly, a complete reworking of the book, much to the frustration of Brin. So they eventually brought in Brian Helgeland (LA Confidential) to start again. What is on screen is seemingly mostly all Helgeland, but Roth gets credited also due to how Hollyweird works... and then Costner/Helgeland re-wrote the book's story themselves, though keeping the central themes.
Roth's an interesting choice and it'll be interesting to see how his relationship with the source material, Villeneuve and the production company's whims, works
Hugo - The Insider has one of the best modern thriller scripts in the past 30 years
Re: The Postman - it in fact appears that Roth's draft of the script was, allegedly, a complete reworking of the book, much to the frustration of Brin. So they eventually brought in Brian Helgeland (LA Confidential) to start again. What is on screen is seemingly mostly all Helgeland, but Roth gets credited also due to how Hollyweird works... and then Costner/Helgeland re-wrote the book's story themselves, though keeping the central themes.
Roth's an interesting choice and it'll be interesting to see how his relationship with the source material, Villeneuve and the production company's whims, works
Hugo - The Insider has one of the best modern thriller scripts in the past 30 years