No is not, is a part of it but usually there is an artistic director for that

He sets it up, but it isn't his decision on which way it will be shot or used in the film.

 I have worked in movies and you'd be surprised on how much protagonism the art director and the photography director can have in a project, specially when they have a reputation, sometimes the director just says simple guidelines and then "do your best", that's it.

I have as well, and at best they can make suggestions. The director can say that's a great idea and use it, or say no. But if he says no, he isn't going to take their suggestion, guess what happens?

That the photographer or art director can say "ok I'm out" and put the director in a serious problem or just work worse because they don't feel good with what they are doing. It depends, there are different types of director, some are tiranic, some are extremelly open.

No they don't, lol. That's not their job. If they did they simply would never get hired again and one of the millions of people who are waiting to take their spot step up.

Have you seriously worked on any movie? Some photographers and art director have great reputation and can be the difference between a good and a great movie, you think the Director is a God that decides everything but this is not how it woks most of the time, usually is a team work, there are some tyranic directors but that's usually not a great strategy,

The director isn't a God, but the director has final creative decision.... That's his job. He may often take advise, but the final call is his.

Same here. I need something to get that bad Spectre taste out of my mouth. 

Nolan isn't a perfect director but he's one of the more dependable filmmakers working today. James Bond would fall neatly into his wheelhouse. Give me Elba as Bond, Nolan behind the camera, and a god damn competent script, and I'll be on board.

Not always, in big movies producers usually put a lot of limits and requests that the director can negociate but he is rarely completely free on creative decisions.