Whenever people talk about adapting Foundation to the big (or small) screen, the popular opinion has been that it’s unfilmable. The book (the whole original trilogy, really) is, for the most part, people sitting around and talking.
But with the popularity of Game of Thrones, and the trend that has started of book series being turned into television series, I started thinking about how Foundation might could be adapted. I think you could do it, if you treat the books as an outline. Lots of interesting things happen “off screen”–tell those stories in a way that serves the larger themes that are in the books.