"Calling a director a 'designer' is almost a tautology: indeed, anyone making creative choices about what to leave in or leave out, in any medium, is designing. But Fincher's coolly intelligent eye, laserlike attention to detail, and (in his best work) apparent fascination with storytelling as problem-solving, all set him apart from other filmmakers as a true designer-auteur. He makes films like Jony Ive makes iMacs: They just work -- with style to burn."
Fastcodesign.com has this great article on Fincher's talent for, let's call it, "story design" by writer and filmmaker John Pavlus. A very intriguing perspective, that is.