What that list doesn't show is the huge volume of scripts he's doctored, ghost written or polished for production. He is one of the most widely used (and highest paid) finishers in the business. And for good cause. The man is a brilliant writer. His films that he directs are his passion projects, but the amount of work he does in the main stream (without credit) is pretty impressive.
Two lesser known examples: Crimson Tide (horrible before he re-did the dialogue), It's Pat (yes, THAT It's Pat),