Roger Moore is a talented guy. Not only did he play 007, but he's also written about the guy, as well. In his book, Bond on Bond, Moore gives ample insight into the world of the fictional spy. And while Moore provides all sorts of interesting behind-the-scenes details, he drops one informational nugget that's particularly surprising. Though the franchise has flourished for years, Moore says the series has gotten by largely without the help of a script.
Now, that's not to say the filmmakers come into the shoot with nothing. The basic plot is laid out, the action set pieces are written, and of course, all the love scenes are in place. But all that snappy dialogue is constantly changing, from the first read to the final shooting dates (at least back in Moore's day, anyway).
Moore explains that the original script is written in white pages with different colored pages for every rewrite. By the time they shoot, there's nary a white page to be found. On set with director Lewis Gilbert, Moore would have his lines memorized and ready to go, when Gilbert would say "Oh, I think we can improve on that," and basically flush the script down the toilet. The actor admits this is probably frustrating for screenwriters, but he hopes the paychecks are big enough to make up for all the on-set editing.